rocDecode Buffer Tracing Support (#315)

* Added buffer tracing support for rocdecode and updated tests to work with buffer tracing

* Updated perfetto to output args individually rather than as a string list

* Updated docstrings and operation type, changed OTF2 code to remove warning due to change in operation type

* Updated tests for review comments

* Test args exist and return value

* Updated to use string entry

* Change function name

* Updated PR to reflect review comments

* Updated for PR review comments

* Change function name

source/include/rocprofiler-sdk/rocdecode/api_args.h

@@ -51,6 +51,7 @@ typedef struct rocprofiler_rocdecode_api_no_args
 
 typedef union rocprofiler_rocdecode_api_retval_t
 {
+    uint64_t    uint64_t_retval;
     int32_t     rocDecStatus_retval;
     const char* const_charp_retval;
 } rocprofiler_rocdecode_api_retval_t;