Add choice inspector plugin.

This will help modifying choices in the inspector.

addons/textalog/events/dialog/choice_inspector.gd

@@ -0,0 +1,20 @@
+extends EditorInspectorPlugin
+
+const InspectorTools = preload("res://addons/textalog/core/inspector_tools.gd")
+
+var plugin_script:EditorPlugin
+var editor_inspector:EditorInspector
+var editor_gui:Control
+
+var ObjClass = load("res://addons/textalog/events/dialog/choice.gd")
+
+func can_handle(object: Object) -> bool:
+	return object is ObjClass
+
+func parse_category(object: Object, category: String) -> void:
+	if not editor_inspector.has_method("get_category_instance"):
+		return
+
+
+func parse_property(object: Object, type: int, path: String, hint: int, hint_text: String, usage: int) -> bool:
+	return false