Core: Add settings API ("auto settings") for host.yaml (#1871)

* Add settings API ("auto settings") for host.yaml

* settings: no BOM when saving

* settings: fix saving / groups resetting themselves

* settings: fix AutoWorldRegister import

Co-authored-by: el-u <109771707+el-u@users.noreply.github.com>

* Lufia2: settings: clean up imports

* settings: more consistent class naming

* Docs: update world api for settings api refactor

* settings: fix access from World instance

* settings: update migration timeline

* Docs: Apply suggestions from code review

Co-authored-by: Zach Parks <zach@alliware.com>

* Settings: correctly resolve .exe in UserPath and LocalPath

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Co-authored-by: el-u <109771707+el-u@users.noreply.github.com>
Co-authored-by: Zach Parks <zach@alliware.com>

OoTClient.py

@@ -296,8 +296,6 @@ async def patch_and_run_game(apz5_file):
     comp_path = base_name + '.z64'
     # Load vanilla ROM, patch file, compress ROM
     rom_file_name = Utils.get_options()["oot_options"]["rom_file"]
-    if not os.path.exists(rom_file_name):
-        rom_file_name = Utils.user_path(rom_file_name)
     rom = Rom(rom_file_name)
 
     sub_file = None