Support larger tables in the table unit test

[skliper]

Is your feature request related to a problem? Please describe.
The first limitation hit is TBL services needs CFE_PLATFORM_TBL_MAX_SIMULTANEOUS_LOADS * CFE_PLATFORM_TBL_MAX_SNGL_TABLE_SIZE from the memory pool for setting up the load buffers. Easy to exhaust the buffer set up in ut_support.c:

cFE/modules/core_private/ut-stubs/src/ut_support.c

Lines 50 to 58 in 9d4fcae

	typedef union
	{
	long long int AlignLong;
	long double AlignDbl;
	void * AlignPtr;
	char Content[128 * 1024];
	} UT_Buffer_t;
	static UT_Buffer_t UT_CFE_ES_MemoryPool;

Describe the solution you'd like
Size the buffer used in unit test based on the configured sizes.

Describe alternatives you've considered
Could remove the buffer set up in ut_support.c for CFE_ES_GetPoolBuf and size it everywhere, or could override the handler with something simpler that supports the specific test.

Additional context
Causing stakeholder unit test failures.

Requester Info
Jacob Hageman - NASA/GSFC