* customMappingTable: allocate using calloc instead of new (new will throw exception if nor enough heap)
* fixing a few minor memory leaks
* ws.cpp: catch out-of-memory in sendLiveLedsWs
* ws.cpp: change interval to 80ms (120 ws very slow...)
* getpixelcolor: attribute pure - it reads memory, but does not write
* some optimizations for SEGMENT.blur() and SEGMENT.fadeToBlackBy()
* FX.c:pp remove double calls to blur() and fade_out()
* FX.cpp: SEGMENT.setUpLeds() added to effects, to enable LED buffering (safe some time because getPixelColor does not need to access NeopixelBus)
* a few other optimizations to safe time and avoid "expensive" operations
* set I2C bus speed to 400kHz (default is 100Khz)
* a few other small optimizations and tweaks
* pio: esp32 V4 builds use "patch5" toolchain version, which contains a few bugfixes especially for memory management.
* make local functions "static"
* use fast_ int types where possible
* use native min/max instead of MIN/MAX macros. Macros evaluate each parameter TWICE!!
* adding __attribute__((pure)) and __attribute((const)) to help the compiler optimize
* ws.cpp: reduce max "live leds" in fastpath mode
* Info page: status of Serial (can be disconnected on new MCUs), and owner of RX/TX pins
* improved handling of Serial (don't write if not connected)
* added min available stack size to debug output (esp32 only)
* webserver show remaining stack size
* webserver: show string buffer usage
FX.cpp: GEQ: even distribution of bands
FX_fcn: tiny change
wled.cpp: setupMatrix also if loadedledmap != 0
ws.cpp: replace getLengthTotal by width * height (for ledmaps)
index.js: segment visualization:
- max width if no pc
- don't show nr if only one segment
- Ledmap nr color depending on bus output
FX_2Dfcn.cpp / FX_fcn.cpp
- don't show ledmap -1 pixels
json.cpp: add busses.length to outputs
ws.cpp: peek back to strip.gPC only
* Binary Websockets for Peek
* No IRAM_ATTR here
* Use builtin LittleFS for all ESP32 builds
* Attempt LittleFS compilation fix
* Use tasmota zip for all ESP32 builds
* Revert to Arduino Core 1 for the time being
