Implicit (compiler-added) padding in `SAMPLE_APP_Data_t` struct

[thnkslprpt]

Checklist

• I reviewed the Contributing Guide.
• I performed a cursory search to see if the bug report is relevant, not redundant, nor in conflict with other tickets.

Describe the bug
Seems to be some implicit padding added here after ErrCounter.

Code snips

sample_app/fsw/src/sample_app.h

Lines 48 to 72 in 46279d0

	typedef struct
	{
	/*
	** Command interface counters...
	*/
	uint8 CmdCounter;
	uint8 ErrCounter;
	/*
	** Housekeeping telemetry packet...
	*/
	SAMPLE_APP_HkTlm_t HkTlm;
	/*
	** Run Status variable used in the main processing loop
	*/
	uint32 RunStatus;
	/*
	** Operational data (not reported in housekeeping)...
	*/
	CFE_SB_PipeId_t CommandPipe;
	CFE_TBL_Handle_t TblHandles[SAMPLE_APP_NUMBER_OF_TABLES];
	} SAMPLE_APP_Data_t;

Expected behavior
Make the implicit padding explicit.

Reporter Info
Avi Weiss   @thnkslprpt