- general conversion from .ino modules into a separate .cpp files
- clean-up internal headers, place libraries into .h. guard .cpp with _SUPPORT flags 
- fix some instances of shared variables instead of public methods
- tweak build system to still build a single source file via os environment variable ESPURNA_BUILD_SINGLE_SOURCE

* ntp: try using sntp app from lwip, drop ntpclientlib

* fix display

* thermostat: fix day and month getters

* test build sizes with scheduler

* use system timers for once-a-minute scheduling, no polling

* tick

* avoid timestamps, use tm

* drop utc rpn operator, add utc_hour and utc_dow

* try to build with old implementation too

* dep

* notify ws

* progmem

* cleanup types

* offset tm values by 1 to match existing schedules

* avoid using ntpclientlib with rpn

* test. show debug strings in sch

* fix secureclient

* consts, fix unsyncing when changing tz (and not triggering sntp after reinit for some reason)

* startup time in seconds

* same delay as lwip

* header

* assume build timestamp is unixtime

* cache server value

* fmt

* typo

* handle dhcp request

* rename

* web

* TZ.h

* add notice about what alias means

* fix disabling NTP_SUPPORT

* scheduled ticker

* same behaviour as old module

* rollback rpn dependency check, utc_ prefixes

* ...

* comments, refactor naming

* experimental: refactor get/set/del/hasSetting

* sensors

* lights

* cleaup

* r

* tuya

* fixup! sensors

* fixup! tuya

* header defaults types

* fix lights

* setup already checks for max

* helper for flashstring

* fix overload

* oops

* refactor includes

* warnings

* test with migrate

* add ids in a separate file

* cleanup

rev: crash

rev: domoticz

rev: encoder

rev: loopdelay

rev: hass

rev: i2c

rev2: hass

rev: mqtt

rev: rfm69

rev: relay

rev: rpn

rev: settings setup

rev: hb settings

rev: telnet preprocessor fix

rev: settings wrap

rev: tspk bool style

rev: wifi types

rev: util hb

rev: settings

fixup! rev: settings

* rev: cleanup wifi injections based on new getters

* hasSetting now can return true for empty key

* show hardcoded network in web

* oops

* fix ws referencing wrong index

* ensure empty strings are written

* c/p

* use experimental schema style for payload, mark network as not deletable

* allow to customize converter

* shorter syntax, try using with wifi

* use proper #if syntax to handle definitions that are missing

* fixup ota sc checks getter, cast schEnabled to bool

* add utils header to sensors

- use setOriginalsFromValues function right after elements had changed and
**only** with those elements
- add checkbox handling to setOriginalsFromValues to match hasChanged
- apply hasChanged after value is set to refresh originals after saving
- change parts that already set 'original' attribute manually

This was sort-of broken, because original attr never worked as intended. 
Also fix possible OOM for large WebUI images, since sending full config each time means that we need more memory to buffer and parse it.

- mask is defined as (relay# status << number)
- transparently handle base-2 and base-10 numbers
- if the relay mode requires us to save the mask, it will be saved as base-2

* scheduler: match webui defaults

* relay: inverse error condition

* api: simplify apikey handling

* thingspeak: use apikey default value

* web: fix checkbox value for haschanged

* fixup! scheduler: match webui defaults

* relay: respect relay delay time when using NONE_OR_ONE sync

* fixup! relay: respect relay delay time when using NONE_OR_ONE sync

* calculate delay from flood window + existing delay

* configure flood max changes too

* oops, s -> ms

* count other way around

* interpret delay differently with sync_one/none_or_one

* instead of accumulation, ensure that max delay time is selected (if it is there at all)

* global interlock delay setting, allow to set change_delay before relayStatus(id, status) changes it

* fixup! global interlock delay setting, allow to set change_delay before relayStatus(id, status) changes it

* (finally) use lock attr to avoid user changing state while target != current state

* fix building with 2.3.0

* postpone wspost after all relays are processed, remove change_start refresh, snapshot relaySync value in configure

* fix warning

* add another timer for ONE

* Added restore last schedule support

* Merged RestoreLastScheduleState function into the _schCheck function

* handle lights in restore action

* hide webui chbox when not using scheduler

* use settings instead of struct member, hide under ifdef scheduler_support

* relayLastSchedule uses SCHEDULER_RESTORE_LAST_SCHEDULE as default

* Changed all the variable names to be the same so there would be no confusions

* Fixed client side to create an array from relayLastschedule

* Fixed cosmetic issue with the toggle display in webui

* Fixed variable name and disabled comparison at the end

* Added another check if the switch type is light provider

* Changed variables naming

* Naming mistake

- update every dynamicjsonbuffer with fixed size constructor argument
- change to ws callback registration to use a class builder (just cosmetic)
- test multiple ws data callbacks for each module
- remove some of the static strings in favour of ws data callback
- improve sensor ws callback data size, remove duplicated strings
- use static buffer in wsDebugSend
- postpone wsSend until loop, implement wsPost to allow other modules to queue message callbacks. remove Ticker based ws callbacks for data
- update WebUI files

* send all ws config at once on start
* reduce ws json overhead by creating message buffer manually
* use k:[values] instead of k1:value1, k2:value2 etc. for lists