Find rocDecode - Support added (#428)

* Find rocDecode - Support added

* Find rocDecode - Updates

* Find rocDecode - Version fix

* Find rocDecode - Version Var

* Minor cleanup

* Test - Find package updates

* CTest - Upgrades

* CTest - Enhancements

---------

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

[ROCm/rocdecode commit: befc6f6562]

projects/rocdecode/samples/videoDecodeRGB/CMakeLists.txt

@@ -71,13 +71,7 @@ message("-- ${White}${PROJECT_NAME} -- AMDGPU_TARGETS: ${AMDGPU_TARGETS}${Colour
 
 find_package(HIP QUIET)
 find_package(FFmpeg QUIET)
-# find rocDecode
-find_library(ROCDECODE_LIBRARY NAMES rocdecode HINTS ${ROCM_PATH}/lib)
-find_path(ROCDECODE_INCLUDE_DIR NAMES rocdecode.h PATHS /opt/rocm/include/rocdecode ${ROCM_PATH}/include/rocdecode)
-if(ROCDECODE_LIBRARY AND ROCDECODE_INCLUDE_DIR)
-    set(ROCDECODE_FOUND TRUE)
-    message("-- ${White}${PROJECT_NAME}: Using rocDecode -- \n\tLibraries:${ROCDECODE_LIBRARY} \n\tIncludes:${ROCDECODE_INCLUDE_DIR}${ColourReset}")
-endif()
+find_package(rocDecode QUIET)
 
 if(HIP_FOUND AND FFMPEG_FOUND AND ROCDECODE_FOUND)
     # HIP