feat(behaviors): Add macro-pause-for-layer behavior #6547

Job	Run time
get-grouped-hardware	12s
get-changed-files	4s
core-coverage	12s
nightly	0s
board-changes	0s
compile-matrix	3s
build (nice_nano_v2, [{"shield":"corne_left"},{"shield":"corne_right"},{"shield":"romac"},{"shiel...	5m 51s
build (nrfmicro_13, [{"shield":"corne_left"},{"shield":"corne_right"},{"shield":"romac"},{"shield...	3m 41s
build (proton_c, [{"shield":"corne_left"},{"shield":"corne_right"},{"shield":"romac"},{"shield":"...	2m 50s
build (bdn9_rev2, [{}])	1m 32s
build (nice60, [{}])	2m 4s
build (seeeduino_xiao_ble, [{"shield":"hummingbird"}])	1m 55s
build (nrf52840_m2, [{"shield":"m60"}])	1m 50s
build (planck_rev6, [{}])	1m 30s
build (nice_nano, [{"shield":"romac_plus","cmake-args":"-DCONFIG_ZMK_RGB_UNDERGLOW=y -DCONFIG_WS2...	1m 52s
	23m 36s

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