* Update encoder
- import modified Encoder library
- customize minimum delta value
* minimum delta in header config
* fixup! minimum delta in header config
* fix dead code, actually use interrupts
* move static class methods to normal funcs, apply namespace
* drop hardcoded register use
- use peripheral api (see cores/esp8266/esp8266_peri.h)
- remove bitmask and register struct members
* add a note about changes
* fixup! add a note about changes
- chain debugSend_P into basic _debugSend instead of duplicating code, pass va_list between them
- check if new[] call was successful
- when possible, use stack buffer and fallback to heap buffer only when it is more that 64 chars
* debug: heap fragmentation stat
* Rework method detection
- return check integral type as a result of detection instead of method type
- type-tagging instead of enable_if
* fix alias
* typo
* only need one bool_type instance
* Move heap debug into HeapStats header
- don't show fragmentation stats on the first call
- prettify fragmentation display
- pack function params into helper struct
- naming
* pass external flag instead
* add missing prototypes
- wrapper NTPClient class to avoid inadvertently calling NTP::getTime() while
setting things up
- only call NTP::getTime() when in loop(), install async TimeLib
sync provider and manually set TimeLib time
- randomize sync and delay times