refactor: duplicated path helpers into common/path.hpp (#1249)

* refactor: duplicated path helpers into common/path.hpp

* update rocprof-sys-instrument to use shared path utility

* Add path::realpath(std::string[, std::string*]) helper function in common/path.hpp for binaries

* common: centralize remove_env implementation in environment.hpp

* remove unused includes from rocprof-sys binaries and argparse

* changing set to unordered_set wherever sorting is not required and additional cleanup

* review comment incorporated

* Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* copilot review for remove_env incorporated

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

projects/rocprofiler-systems/source/bin/rocprof-sys-sample/rocprof-sys-sample.cpp

@@ -22,8 +22,6 @@
 
 #include "rocprof-sys-sample.hpp"
 
-#include <algorithm>
-#include <iostream>
 #include <string_view>
 #include <unistd.h>