Fix deadlocks during initialization (#167)

- More to come in later commit, below is just tidying some stuff up
  - clang-tidy
  - mpi_gotcha quiet about not finding funcs
  - update to new papi config
  - sampling block_samples / unblock_samples
    - disable calling component's sample functions within sampler
  - release doesn't strip library
  - remove HSA and ROCP env variables from modulefile / setup-env
- preliminary support for LD_PRELOAD usage
- default sampling rate is 300 interrupts / second
- fixes various deadlock issues at startup

source/lib/common/setup.hpp

@@ -166,7 +166,8 @@ setup_environ(int _verbose, const std::string& _search_paths = {},
                        .c_str(),
                    0);
             setenv("OMNITRACE_ROCPROFILER_LIBRARY",
-                   common::join('/', getenv(itr), "rocprofiler/lib/librocprofiler64.so")
+                   common::join('/', getenv(itr), ROCPROFILER_METRICS_DIR,
+                                "librocprofiler64.so")
                        .c_str(),
                    0);
             break;