[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>

.drone.yml

@@ -15,7 +15,7 @@ volumes:
 steps:
   - name: server-build
     # Source build script https://github.com/Akkadius/akk-stack/blob/master/containers/eqemu-server/Dockerfile#L20
-    image: akkadius/eqemu-server:latest
+    image: akkadius/eqemu-server:v11
     commands:
       - sudo chown eqemu:eqemu /drone/src/ * -R
       - sudo chown eqemu:eqemu /home/eqemu/.ccache/ * -R