Untraced feature to decompress apps/lib on load

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Describe the uncovered feature
The feature to decompress apps/libraries on load that end in .gz does not have requirements or associated build verification. Note it is covered in coverage/functional testing in fs_UT.c.

Possible solutions

1. Remove this feature from the core (allows FS - externalize cfe_fs_decompress #291 to externalize decompress to be implemented cleanly)
2. Add requirements, design, and build verification and resolve how to implement vs FS - externalize cfe_fs_decompress #291 desire to externalize

Related software

• Implemented in cfe_es_apps.c
• Utilizes cfe_fs_api.c: CFE_FS_IsGzFile, CFE_FS_GetUncompressedFile, cfe_fs_decompress.c and cfe_fs_decompress.h

Additional concern
CFE_FS_Decompress prototype is defined in both inc/cfe_fs.h and cfe_fs_decompress.h

Reporter Info
Jacob Hageman - NASA/GSFC

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CCB 20191113 - Discussed and concurred with removal. JSC checking for dependencies.

Other approaches - could use compressed file system (linux functionality), or can decompress using FM then load app/lib using ES. No use case identified that requires this functionality be built into ES.

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See also discussion on #407 covering alternate, more efficient/effective methods that reduces complexity in cFE (decompress at boot/prior to cFE startup).