* fix: resolve crash when profiling TensorFlow GPU application
* incorporate review comments
* updated min_rows from 3 to 2 for threads table validation as internal threads are not profiled and are now correctly bypassed
- Integrate rocprofiler-systems with rocprofiler-sdk-rocpd to fetch schema
- If rocprofiler-sdk-rocpd is not availabe, use embedded schema files. With this we provide rocpd format support even if ROCm is not available
- Include detection in CMake if rocprofiler-sdk-rocpd package is available (and valid), and build database class upon that
- Update embedded schema that is used as a fallback.
- Update some validation tests to account for schema changes.