memory resource leak via uncompressedSamples buffer in GPMF_ScaledData()

[invd]

uncompressedSamples is allocated here:

gpmf-parser/GPMF_parser.c

Line 1388 in 2cc0af7

uncompressedSamples = (uint32_t *)malloc(neededunc + 12);

The free() is supposed to happen during the cleanup:

gpmf-parser/GPMF_parser.c

Lines 1702 to 1704 in 2cc0af7

	cleanup:
	if(uncompressedSamples)
	free(uncompressedSamples);

However, a lot of code paths in this function directly call return instead of assigning ret and jumping to cleanup, which leaks the memory ressources of uncompressedSamples.

Similar to #103, this is likely not a significant problem for short program runs, but it can become a limiting factor for long-running processes.

[dnewman-gpsw]

Good find. Fixed on the develop branch. Moving to master shortly.