[rocprofiler-systems] Update logging to use spdlog library (#2428)

## Motivation

- Structured logging with proper log levels (TRACE, DEBUG, INFO, WARNING, ERROR, CRITICAL)
- Better performance through compile-time formatting
- Consistent formatting using fmt library
- Runtime log level control via arguments and environment variables
- Easier maintenance and debugging capabilities

## Technical Details

- Added spdlog as a submodule and integrated it into CMake build system
- Created new `rocprofiler-systems-logger` library wrapping spdlog functionality
- Replaced custom logging macros (`ROCPROFSYS_VERBOSE`, `ROCPROFSYS_DEBUG`, `ROCPROFSYS_FATAL`, `ROCPROFSYS_REQUIRE`, `ROCPROFSYS_CI_THROW`, etc.) with spdlog equivalents (`LOG_DEBUG`, `LOG_WARNING`, `LOG_CRITICAL`, etc.)
- Implemented log level control through command-line arguments and environment variables
- Converted assertion macros to proper error handling with exceptions and std::abort()

.gitmodules

@@ -98,3 +98,7 @@
 [submodule "projects/rocprofiler-systems/external/filesystem"]
 	path = projects/rocprofiler-systems/external/filesystem
 	url = https://github.com/gulrak/filesystem.git
+[submodule "projects/rocprofiler-systems/external/spdlog"]
+	path = projects/rocprofiler-systems/external/spdlog
+	url = https://github.com/gabime/spdlog.git
+	tag = v1.16.0