OMIT_DEPRECATED dependency on submodule defines undesirable

[skliper]

Is your feature request related to a problem? Please describe.
Setting OMIT_DEPRECATED=true from the make line should omit all deprecated elements. With the current pattern, submodules have similar prefixed defines like CFE_OMIT_DEPRECATED and the expectation is at the global/mission config level OMIT_DEPRECATED needs to set all the submodule defines. Users don't necessarily keep up with the additions, nor does the cFE example:

cFE/cmake/sample_defs/global_build_options.cmake

Lines 20 to 24 in 7f5ebcd

	if (OMIT_DEPRECATED)
	message (STATUS "OMIT_DEPRECATED=true: Not including deprecated elements in build")
	add_definitions(-DCFE_OMIT_DEPRECATED_6_8 -DCFE_OMIT_DEPRECATED_6_7 -DCFE_OMIT_DEPRECATED_6_6 -DOSAL_OMIT_DEPRECATED)
	set(MISSION_RESOURCEID_MODE "STRICT") # more type safe, but less backward compatible
	else()

Note across cFS there's at minimum a CFE_OMIT_DEPRECATED as well as a few app specific ones like SC_OMIT_DEPRECATED.

Describe the solution you'd like
OMIT_DEPRECATED should omit all deprecated elements in a build. Consider at the submodule an or of the generic or submodule specific defines.

Describe alternatives you've considered
Submodule could define the submodule specific ones if the generic one is defined, but if it's a step away from where it's used that could also fall behind (like cFE did).

Additional context
Actual problem that was addressed in nasa/sch_lab#163, where sch_lab was using a deprecated cFE define since it wasn't being excluded correctly in the build CI when using OMIT_DEPRECATED.

Requester Info
Jacob Hageman - NASA/GSFC