CTest updates. (#473)

* * rocDecode: Core test updates.
 - Added VP9 test.
 - Added tests for video decode raw sample.
 - Changed test video streams to raw elementary or IVF formats.

* * rocDecode/CTest: Added back mp4 files.

* * rocDecode/CTest: Minor changes based on review comments.

* * rocDecode/CTest: Added stream file installation.

* * rocDecode/CTest: Changed the file back to mp4.

* Add support for VP9 handling in the videoDecodeBatch sample

* add linking with threads for videodecode app

---------

Co-authored-by: Aryan Salmanpour <aryan.salmanpour@amd.com>

[ROCm/rocdecode commit: 597b29a7c9]

projects/rocdecode/docs/reference/rocDecode-formats-and-architectures.rst

@@ -11,6 +11,7 @@ rocDecode supports the following codecs:
 * H.265 (HEVC): 8 bit and 10 bit
 * H.264 (AVC): 8 bit
 * AV1: 8 bit and 10 bit
+* VP9: 8 bit and 10 bit
 
 The following table shows the codec support and capabilities of the VCN for each supported GPU
 architecture: