[Encoder ME] add memory allocation basics for FME
Merge pull request #609 from sijchen/fme_merge32

[Encoder ME] add memory allocation basics for FME
refactor
Merge branch 'master' of https://github.com/cisco/openh264 into fme_merge80
Merge remote-tracking branch 'origin/fme_merge80' into fme_merge80

Conflicts:
	codec/encoder/core/inc/wels_func_ptr_def.h