[Net] Modularize multiplayer, expose MultiplayerAPI to extensions.

- RPC configurations are now dictionaries.
- Script.get_rpc_methods renamed to Script.get_rpc_config.
- Node.rpc[_id] and Callable.rpc now return an Error.
- Refactor MultiplayerAPI to allow extension.
- New MultiplayerAPI.rpc method with Array argument (for scripts).
- Move the default MultiplayerAPI implementation to a module.

1 files changed, 19 insertions, 0 deletions

diff --git a/modules/multiplayer/config.py b/modules/multiplayer/config.py
new file mode 100644
index 0000000000..414bf0afcf
--- /dev/null
+++ b/modules/multiplayer/config.py
@@ -0,0 +1,19 @@
+def can_build(env, platform):
+    return True
+
+
+def configure(env):
+    pass
+
+
+def get_doc_classes():
+    return [
+        "SceneReplicationConfig",
+        "SceneMultiplayer",
+        "MultiplayerSpawner",
+        "MultiplayerSynchronizer",
+    ]
+
+
+def get_doc_path():
+    return "doc_classes"