Add support for RGB565 linux framebuffer rendering #15862

Job	Run time
cpp_test_driver (ubuntu-22.04)	8m 14s
cpp_test_driver (macos-12)	8m 28s
cpp_test_driver (windows-2022)	9m 11s
mcu (pico-st7789, thumbv6m-none-eabi)	1m 12s
build_and_test (ubuntu-22.04, 1.73)	17m 12s
mcu (stm32h735g, thumbv7em-none-eabihf)	1m 11s
build_and_test (macos-12, stable)	17m 13s
cpp_cmake (macos-12, 1.73)	16m 50s
mcu_esp	3m 35s
build_and_test (windows-2022, stable)	17m 3s
node_test (ubuntu-22.04)	6m 8s
build_and_test (windows-2022, 1.73)	17m 4s
node_test (macos-12)	17m 13s
python_test (ubuntu-22.04)	3m 15s
build_and_test (windows-2022, beta, --exclude ffmpeg --exclude gstreamer-player)	17m 16s
node_test (windows-2022)	14m 52s
python_test (macos-12)	3m 25s
build_and_test (ubuntu-22.04, nightly)	13m 5s
cpp_cmake (windows-2022, nightly)	8m 55s
python_test (windows-2022)	3m 6s
cpp_cmake (ubuntu-22.04, stable)	9m 45s
esp-idf-quick	8m 49s
android	3m 33s
ffi_32bit_build	2m 30s
fmt_test	2m 31s
uefi-demo	1m 11s
updater_test (0.3.0)	2m 8s
miri	1m 11s
docs / docs	1m 13s
wasm / wasm	4m 42s
tree-sitter / tree-sitter-tests	10s
wasm_demo / wasm_demo	10m 32s
wasm / lint-slintpad	32s
wasm / build-slintpad	48s
cpp_package_test	1s
	4h 14m 4s

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