feat(plugin): add pause_before_race_continue plugin

close #170

plugins/pause_before_race_continue.py

@@ -0,0 +1,19 @@
+from auto_derby.single_mode.commands.race import RaceResult
+from auto_derby.single_mode.context import Context
+import auto_derby
+from auto_derby import terminal
+
+
+class Plugin(auto_derby.Plugin):
+    def install(self) -> None:
+        _next = auto_derby.config.on_single_mode_race_result
+
+        def _handle(ctx: Context, result: RaceResult):
+            if result.is_failed:
+                terminal.pause(f"pause before continue race: {result}")
+            _next(ctx, result)
+
+        auto_derby.config.on_single_mode_race_result = _handle
+
+
+auto_derby.plugin.register(__name__, Plugin())