[File Paths] Implement Path Manager (#2440)

* Push up branch for testing

* Path manager

* Tweaks

* Changes

* More path work

* Update paths for eqemu_server.pl

* More path work

* Import and export client files

* Path remove

* More path work

* Update eqemu_config.h

* Fix tests

* Tests disable temp

* Update eqemu_config.h

* Update .drone.yml

* Hook tests back up

* Update main.cpp

* Platform tests

* Fix include

* Use std::filesystem on windows

* Fix IPCMutex name on windows

* std::filesystem changes

* Update path_manager.cpp

* Explicit string cast

* Explicit string cast

* Update path_manager.cpp

* Windows fixes

* Mapped files

* Relative fixes

* Use relative paths off of cwd

* Update Debian image to Debian 11 (updates GCC)

Co-authored-by: hg <4683435+hgtw@users.noreply.github.com>

common/ipc_mutex.h

@@ -37,7 +37,7 @@ namespace EQ {
 			Creates a named binary semaphore, basically a semaphore that is init S <- 1
 		\param name The name of this mutex.
 		*/
-		IPCMutex(std::string name);
+		IPCMutex(const std::string& name);
 
 		//! Destructor
 		~IPCMutex();