EXSWCPHIPT-42: Changes to HIP RTC Framework implementation (#2732)

- Removed ifdef from hipTestContext class
- Fix potential race condition in hipTest::launchRTCKernel()
- Improve documentation
- Move moduleUnloading to main() instead of explicitly calling it on every test
- Fix code formating
- Fix segmentation fault caused by using catch2 macro after catch2 is destroyed

[ROCm/hip commit: d46d399976]

projects/hip/tests/catch/external/Catch2/cmake/Catch2/Catch.cmake

@@ -204,9 +204,9 @@ function(hip_add_exe_to_target)
   )
   # Create shared lib of all tests
   if(NOT RTC_TESTING)
-  add_executable(${_NAME} EXCLUDE_FROM_ALL ${_TEST_SRC} $<TARGET_OBJECTS:Main_Object> $<TARGET_OBJECTS:KERNELS>)
+    add_executable(${_NAME} EXCLUDE_FROM_ALL ${_TEST_SRC} $<TARGET_OBJECTS:Main_Object> $<TARGET_OBJECTS:KERNELS>)
   else ()
-  add_executable(${_NAME} EXCLUDE_FROM_ALL ${_TEST_SRC} $<TARGET_OBJECTS:Main_Object>)
+    add_executable(${_NAME} EXCLUDE_FROM_ALL ${_TEST_SRC} $<TARGET_OBJECTS:Main_Object>)
     if(HIP_PLATFORM STREQUAL "amd")
       target_link_libraries(${_NAME} hiprtc)
     else()