Local #defines in cf_cmd.c used as special values in command processing (w/ repeat dfn in tests)

[skliper]

Checklist (Please check before submitting)

• I reviewed the Contributing Guide.
• I reviewed the CF README.md file to see if the feature is in the major future work.
• I performed a cursory search to see if the feature request is relevant, not redundant, nor in conflict with other tickets.

Is your feature request related to a problem? Please describe.
ALL_CHANNELS, ALL_POLLDIRS, COMPOUND_KEY used in command processing shouldn't be defined in a *.c where it's inaccessible and somewhat hidden. The names aren't great either, better to prefix w/ app.

CF/fsw/src/cf_cmd.c

Lines 41 to 43 in 593d61a

	#define ALL_CHANNELS (255)
	#define ALL_POLLDIRS (ALL_CHANNELS)
	#define COMPOUND_KEY (254)

Describe the solution you'd like
Move into cfe_msg.h and rename as CF_ALL_CHANNELS and similar, which would allow removal from cf_test_utils.h:

CF/unit-test/utilities/cf_test_utils.h

Line 53 in 593d61a

#define ALL_CHANNELS 255

Describe alternatives you've considered
None

Additional context
None

Requester Info
Jacob Hageman - NASA/GSFC

[skliper]

Slightly different pattern but similar issue with CF_CmdReset, the following for counters_command, counters_fault, counters_up, counters_down:

CF/fsw/src/cf_cmd.c

Lines 70 to 73 in 0774746

	static const int counters_command = 1;
	static const int counters_fault = 2;
	static const int counters_up = 3;
	static const int counters_down = 4;

CF_CmdWriteQueue for type_up, type_down, q_pend, q_active, q_history, q_all:

CF/fsw/src/cf_cmd.c

Lines 832 to 837 in 0774746

	static const int type_up = 1;
	static const int type_down = 2;
	static const int q_pend = 0;
	static const int q_active = 1;
	static const int q_history = 2;
	static const int q_all = 3;

Forces duplicate dfns, fragile.