Counter API and Samples Updates (#410)

* Update include/rocprofiler-sdk/{counters,profile_config}.h

- use rocprofiler_agent_id_t instead of rocprofiler_agent_t

* Update samples

- use rocprofiler-sdk::rocprofiler-sdk instead of rocprofiler::rocprofiler in cmake
- api_callback_tracing sample roctxProfiler{Pause,Resume}
- api_callback_tracing sample uses ROCTx
- updates to use rocprofiler_agent_id_t

* Update run-ci.py

- exclude rocprofiler-sdk-tool from samples (no sample uses that code)

* Update lib/rocprofiler-sdk-tool/tool.cpp

- Update rocprofiler_iterate_agent_supported_counters to use agent ID

* Update lib/rocprofiler-sdk/counters/core.*

- profile_config has pointer to agent instead of copy

* Update lib/rocprofiler-sdk/agent.*

- provide get_agent(...) func via rocp agent id

* Update lib/rocprofiler-sdk/{buffer,callback}_tracing.cpp

- return ROCPROFILER_STATUS_ERROR_NOT_IMPLEMENTED for enums missing implementation

* Update lib/rocprofiler-sdk/counters.cpp

- update to use rocprofiler_agent_id_t instead of rocprofiler_agent_t

* Update lib/rocprofiler-sdk/profile_config.cpp

- update to use rocprofiler_agent_id_t instead of rocprofiler_agent_t

* Update source/docs

- requirements.txt + install reqs in cmake

* Bump version to 0.1.0

* Update samples/api_callback_tracing/CMakeLists.txt

- LD_LIBRARY_PATH for test

* Update test/rocprofv3/tracing/CMakeLists.txt

- reorder validation files so memory copy comes first

* Update lib/rocprofiler-sdk-tool/tool.cpp

- logging for flushing buffers
- variables for buffer_size and buffer_watermark
  - increase the watermark to a full buffer
- use dedicated threads for each buffer

* Update lib/rocprofiler-sdk-tool/CMakeLists.txt

- test sets ROCPROF_LOG_LEVEL and ROCPROFILER_LOG_LEVEL to info

* Remove lib/rocprofiler-sdk-tool/trace_buffer.hpp

* Update lib/rocprofiler-sdk-tool/CMakeLists.txt

- drop log level to warning when leak sanitizer is enabled (produces small memory leak)

source/lib/rocprofiler-sdk/agent.cpp

@@ -671,6 +671,16 @@ get_agents()
     return pointers;
 }
 
+const rocprofiler_agent_t*
+get_agent(rocprofiler_agent_id_t id)
+{
+    for(const auto& itr : get_agents())
+    {
+        if(itr && itr->id.handle == id.handle) return itr;
+    }
+    return nullptr;
+}
+
 void
 construct_agent_cache(::HsaApiTable* table)
 {