Basic config system from a json file but it's got serious issues. Can't copy construct it because of the variable blocking copying, and it can't even be put into the dinkyecs in any way.

meson.build

@@ -20,7 +20,7 @@ runtests = executable('runtests', [
   'sound.cpp',
   'collider.cpp',
   'ansi_parser.cpp',
-  #'render.cpp',
+  'config.cpp',
   'tests/fsm.cpp',
   'tests/dbc.cpp',
   'tests/map.cpp',
@@ -28,6 +28,7 @@ runtests = executable('runtests', [
   'tests/sound.cpp',
   'tests/dinkyecs.cpp',
   'tests/ansi_parser.cpp',
+  'tests/config.cpp',
   ],
   dependencies: dependencies)