Moved and split escoria._ev_left_click_on_item() function into ESCController (#371)

* Moved and split escoria._ev_left_click_on_item() function into ESCController.
Added a boolean in ESCWalkContext to hold whether interact should happen after destination is reached.

Co-authored-by: StraToN <StraToN@users.noreply.github.com>

docs/api/ESCController.md

@@ -0,0 +1,18 @@
+<!-- Auto-generated from JSON by GDScript docs maker. Do not edit this document directly. -->
+
+# ESCController
+
+## Method Descriptions
+
+### perform\_walk
+
+```gdscript
+func perform_walk(moving_obj: ESCObject, destination, is_fast: bool = false)
+```
+
+### perform\_inputevent\_on\_object
+
+```gdscript
+func perform_inputevent_on_object(obj: ESCObject, event: InputEvent, default_action: bool = false)
+```
+