- 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.

- fix colorpicker variable name
- var msg and var pre for debug messages
- add gpio16 to gpio list, remove unused template code
- fix lightfox endif matching rfbridge instead of lightfox
- formatting

- add experimental `relayDummy` to configure dummy relays at runtime
- add tuya-generic-dimmer #1729
- cleanup broker interface to allow Tuya module to properly receive events, modify broker methods to allow different function signatures
- add basic tests for Tuya frame and data protocol

* 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

* RPN rules (WIP)

* RPN rules web interface, MQTT inputs

* Stickyness, rpn.ops,...

* Perform light updates only when value changes

* Improve wsSend performance

* Revert PR test

* Check TERMINAL_SUPPORT for _rpnInitCommands and remove unused variable

* Fix merge

* formatting

* disable by default (?)

* changelog

* comment

* remove debug function wrappers in favour of var activation

* fixup! comment

* web: re-add wifi scan action, send as json array

* ws: forcibly inline send functions

* Syncronize js when saving important data

* update webui

* relays: locked status

* remove debug

* Disable relay toggle when locked

* fixup! Disable relay toggle when locked

* Send lock with status, fix "disable" condition

* typo

* Update WebUI

Amend #1843 , since we have updated ESPAsyncWebServer
Fixes (again) #1300

Gather WS debug messages in a buffer and flush every N times
info,keys,crash actually output data now

- remove optional RFRAW_SUPPORT
- enable module when RF_SUPPORT=1, optionally enable RCSwitch
- reorder ifdef checks to treat RFB_DIRECT and old RF_SUPPORT the same
- rename RF_PIN to RFB_RX_PIN
- depend on RF_SUPPORT instead of ITEAD_SONOFF_RFBRIDGE
- runtime TX & RX PIN setting