Keycode alias support.

lib/python/qmk/cli/generate/community_modules.py

@@ -47,6 +47,8 @@ def _render_keycodes(module_jsons):
                     first = False
                 else:
                     lines.append(f'    {key},')
+                for alias in keycode.get('aliases', []):
+                    lines.append(f'    {alias} = {key},')
             lines.append('')
     lines.append('    LAST_COMMUNITY_MODULE_KEY')
     lines.append('};')

lib/python/qmk/json_encoders.py

@@ -256,5 +256,10 @@ class CommunityModuleJSONEncoder(QMKJSONEncoder):
                 return '03features'
             if key == 'keycodes':
                 return '04keycodes'
+        elif self.indentation_level == 3:  # keycodes
+            if key == 'key':
+                return '00key'
+            if key == 'aliases':
+                return '01aliases'
 
         return key