rocprofiler-sdk-codeobj: use pkg-config to find libdw / libelf (#749)

* rocprofiler-sdk-codeobj: use pkg-config to find libdw / libelf

The current version of source/lib/rocprofiler-sdk-codeobj/CMakeLists.txt
adds -ldw and -lelf to target_link_libraries. However, on a system where
libdw-dev / libelf-dev is missing, the cmake configuration phase will
run properly and a compile time error will eventually be raised.

This patch changes the CMakelists.txt to search for libelf libdw and
configures the target as needed.  Systems missing the required support
should report an error when running cmake instead of in the middle of
the compilation.

* Use INTERFACE targets

* Resolve issues with Findlib{dw,elf}

---------

Co-authored-by: Jonathan R. Madsen <jonathanrmadsen@gmail.com>

source/bin/CMakeLists.txt

@@ -8,5 +8,6 @@ configure_file(rocprofv3 ${PROJECT_BINARY_DIR}/${CMAKE_INSTALL_BINDIR}/rocprofv3
 install(
     FILES rocprofv3
     DESTINATION ${CMAKE_INSTALL_BINDIR}
-    PERMISSIONS OWNER_READ OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE
+    PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ
+                WORLD_EXECUTE
     COMPONENT tools)