Merge branch 'master' of https://github.com/cjenkin2/EHWE-21
Updated and tested persistent memory tests
Switched out EGLSink for less crashy mfw_xvimagesink. Started refactoring test scripts
Fixed typo in installs.sh and in run_vpu_decoder_tests.sh
Discovered VPU decoder (through playbin2) doesn't like h263 or mpeg2
Continued refactor for better configurability. Updated usage message in prep for new features
Merge branch 'master' of https://github.com/cjenkin2/EHWE-21