Native SPI RGB LED component (#5288)

* Add testing branch to workflow

* Add workflow

* Checkpoint

* Align SPI data rates in c++ code with Python code.

* Checkpoint

* CI fixes

* Update codeowners

* Workflow cleanup

* Rename to spi_rgb_led

* Rename header file

* Clang tidy

* Disable spi after transfer.

* Move enable() to where it belongs

* Call spi_setup before enable

* Clang tidy

* Add test

* Rename to spi_led_strip

* Include 'defines.h'

* Fix CODEOWNERS

* Migrate data rate to new style setting.

* Remove defines.h

* Fix class name

* Fix name in .py

* And more more name tidy up.

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Co-authored-by: Keith Burzinski <kbx81x@gmail.com>

CODEOWNERS

@@ -272,6 +272,7 @@ esphome/components/sonoff_d1/* @anatoly-savchenkov
 esphome/components/speaker/* @jesserockz
 esphome/components/spi/* @esphome/core
 esphome/components/spi_device/* @clydebarrow
+esphome/components/spi_led_strip/* @clydebarrow
 esphome/components/sprinkler/* @kbx81
 esphome/components/sps30/* @martgras
 esphome/components/ssd1322_base/* @kbx81