[2/N] Agent Counter implementation with unit tests to check functionality (#846)

Agent Counter Collection API with tests and samples.
---------

Co-authored-by: Benjamin Welton <ben@amd.com>

source/lib/rocprofiler-sdk/agent_profile.cpp

@@ -22,14 +22,29 @@
 
 #include <rocprofiler-sdk/rocprofiler.h>
 
+#include "lib/rocprofiler-sdk/context/context.hpp"
+#include "lib/rocprofiler-sdk/counters/agent_profiling.hpp"
 #include "lib/rocprofiler-sdk/counters/core.hpp"
+#include "rocprofiler-sdk/fwd.h"
 
 extern "C" {
 rocprofiler_status_t ROCPROFILER_API
-rocprofiler_configure_agent_profile_counting_service(rocprofiler_context_id_t        context_id,
-                                                     rocprofiler_buffer_id_t         buffer_id,
-                                                     rocprofiler_profile_config_id_t config_id)
+rocprofiler_configure_agent_profile_counting_service(rocprofiler_context_id_t context_id,
+                                                     rocprofiler_buffer_id_t  buffer_id,
+                                                     rocprofiler_agent_id_t   agent_id,
+                                                     rocprofiler_agent_profile_callback_t cb,
+                                                     void*                                user_data)
 {
-    return rocprofiler::counters::configure_agent_collection(context_id, buffer_id, config_id);
+    return rocprofiler::counters::configure_agent_collection(
+        context_id, buffer_id, agent_id, cb, user_data);
+}
+
+rocprofiler_status_t ROCPROFILER_API
+rocprofiler_sample_agent_profile_counting_service(rocprofiler_context_id_t   context_id,
+                                                  rocprofiler_user_data_t    user_data,
+                                                  rocprofiler_counter_flag_t flags)
+{
+    return rocprofiler::counters::read_agent_ctx(
+        rocprofiler::context::get_registered_context(context_id), user_data, flags);
 }
 }