[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/CMakeLists.txt

@@ -37,7 +37,7 @@ SET(common_sources
     extprofile.cpp
     discord_manager.cpp
     faction.cpp
-    file_util.cpp
+    file.cpp
     guild_base.cpp
     guilds.cpp
     inventory_profile.cpp
@@ -61,6 +61,7 @@ SET(common_sources
     packet_dump.cpp
     packet_dump_file.cpp
     packet_functions.cpp
+    path_manager.cpp
     perl_eqdb.cpp
     perl_eqdb_res.cpp
     proc_launcher.cpp
@@ -529,7 +530,7 @@ SET(common_headers
     expedition_lockout_timer.h
     extprofile.h
     faction.h
-    file_util.h
+    file.h
     features.h
     fixed_memory_hash_set.h
     fixed_memory_variable_hash_set.h
@@ -565,6 +566,7 @@ SET(common_headers
     packet_dump.h
     packet_dump_file.h
     packet_functions.h
+    path_manager.cpp
     platform.h
     proc_launcher.h
     profanity_manager.h