LED Dimmer (#13776)

LED Dimmer (#13776)

* LED Dimmer

Build with EXTRA_FLAGS=-DUSE_LED_STRIP

Tested on SpeedyBeeF7V3

Added adjrange to update the ledstrip_brightness variable. This allows for easy changing of LEDs without having to connect to the configurator.

* Added Unit Tests, Space to Tab

Added unit tests into rx_controls_unittest.cc. The LED brightness is returned as 50 for testing purposes.

Changed tabs in ledstrip.c & .h and rc_adjustments.c to 4 spaces for coding standards.

* Update src/main/fc/rc_adjustments.h

Missed a tab in rc_adjustments.h

Co-authored-by: nerdCopter <56646290+nerdCopter@users.noreply.github.com>
* Update src/main/fc/rc_adjustments.c

Removal of empty line

Co-authored-by: nerdCopter <56646290+nerdCopter@users.noreply.github.com>
* Update rc_adjustments.c

Co-authored-by: Petr Ledvina <ledvinap@gmail.com>
* Update src/main/io/ledstrip.c

* Update src/main/io/ledstrip.h

* Update src/test/unit/rc_controls_unittest.cc

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Co-authored-by: nerdCopter <56646290+nerdCopter@users.noreply.github.com>
Co-authored-by: Jay Blackman <blckmn@users.noreply.github.com>
Co-authored-by: Petr Ledvina <ledvinap@gmail.com>
Co-authored-by: Mark Haslinghuis <mark@numloq.nl>