[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/counters/tests/code_object_loader.hpp

@@ -0,0 +1,65 @@
+// MIT License
+//
+// Copyright (c) 2023 Advanced Micro Devices, Inc. All rights reserved.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#pragma once
+
+#include <hsa/hsa.h>
+#include <hsa/hsa_ext_amd.h>
+#include <string>
+
+#include "lib/common/filesystem.hpp"
+
+namespace rocprofiler
+{
+namespace counters
+{
+namespace testing
+{
+struct CodeObject
+{
+    hsa_file_t               file         = 0;
+    hsa_code_object_reader_t code_obj_rdr = {};
+    hsa_executable_t         executable   = {};
+};
+
+hsa_status_t
+load_code_object(const std::string& filename, hsa_agent_t agent, CodeObject& code_object);
+struct Kernel
+{
+    uint64_t handle        = 0;
+    uint32_t scratch       = 0;
+    uint32_t group         = 0;
+    uint32_t kernarg_size  = 0;
+    uint32_t kernarg_align = 0;
+};
+
+hsa_status_t
+get_kernel(const CodeObject&  code_object,
+           const std::string& kernel,
+           hsa_agent_t        agent,
+           Kernel&            kern);
+
+void
+search_hasco(const common::filesystem::path& directory, std::string& filename);
+}  // namespace testing
+}  // namespace counters
+}  // namespace rocprofiler