Migrated malloc related files under memory folder into catch2 framework
Change-Id: I5aa07fc8148bdf6bef135947091aaf1d3c54663b
[ROCm/hip-tests commit: 4287af6a2f]
Migrated all hipMemcpy related APIs to CATCH2 framework by optmizing
the code and moving the stress related tests to stress folder.
Change-Id: Id47669b49304c35d1a68fabdaaf3f6e3ab0428a5
[ROCm/hip-tests commit: 18591bc68f]