* Add support for rocDecCreateDecoder API
* check the decoder config support before initializing the vaapi
* rename RocdecDecoderCreateInfo to RocDecoderCreateInfo
* fix a typo
[ROCm/rocdecode commit: 32f854c159]
* rocDecode api defintions added for decoder and parser
* addressed review comments and changed struct names to CamelCase
* minot reformatting
* parser high level class implementation
[ROCm/rocdecode commit: 0a991c1776]
* rocDecode api defintions added for decoder and parser
* addressed review comments and changed struct names to CamelCase
* minot reformatting
[ROCm/rocdecode commit: 4ea67e279d]