Fix #101: Dashes in the names of PSA config keys results in parsing errors

The issue here was the regex pattern was too restrictive, so it did not
pick up the lines as ones that needed to have the `=` appended at the
end so that the ConfigParser could properly parse the file.

io_scene_psk_psa/psa/config.py

@@ -28,7 +28,7 @@ def _load_config_file(file_path: str) -> ConfigParser:
     with open(file_path, 'r') as f:
         lines = f.read().split('\n')
 
-    lines = [re.sub(r'^\s*(\w+)\s*$', r'\1=', line) for line in lines]
+    lines = [re.sub(r'^\s*([^=]+)\s*$', r'\1=', line) for line in lines]
 
     contents = '\n'.join(lines)