Configurable friction, dynamic max-speed, and character rotation!

• Support for rotating the character animation to match the surface slope at the grab point.
• A system for annotating surfaces by drawing marks on tile-maps in Godot's scene editor.
• Support for configurable friction per tile.
• Support for configurable max-speed per tile.
• Support for collinear neighbor surfaces.
• Support for character categories.
• Support for backtracking when overshooting the target on slippery surfaces.