Misc fixes before v1.8.0 release (#239)

* Update timemory submodule for OMPT

- Updated OMPT support for OpenMP 5.2

* omnitrace exe cleanup

- fixed "omnitrace --" segfault
- added nullptr checks

* CMake updates

- moved omnitrace-interface-library definition up a directory
- general cleanup
- fixed branch/tag/ref for git submodule checkouts

* Improve shutdown of causal profiling after duration limit

* Fix dyninst minimum version number

* Removed debug print from binary::get_link_map

* Remove use of thread-pool in causal

* Relax causal testing when variance is high

* causal_gotcha utilities for blocking signals

* Tweak to causal example

* Install validate-causal-json as omnitrace-causal-print

* simplify address_multirange

* improve causal line saving

source/lib/omnitrace/library/causal/delay.cpp

@@ -23,6 +23,7 @@
 #include "library/causal/delay.hpp"
 #include "core/state.hpp"
 #include "core/utility.hpp"
+#include "library/causal/components/causal_gotcha.hpp"
 #include "library/causal/experiment.hpp"
 #include "library/runtime.hpp"
 #include "library/thread_data.hpp"
@@ -108,10 +109,12 @@ delay::process()
         }
         else if(get_global() > get_local())
         {
+            ::omnitrace::causal::component::causal_gotcha::block_signals();
             auto _beg = tracing::now();
             std::this_thread::sleep_for(
                 std::chrono::nanoseconds{ get_global() - get_local() });
             get_local() += (tracing::now() - _beg);
+            ::omnitrace::causal::component::causal_gotcha::unblock_signals();
         }
     }
     else