Code-26: Refactor ladder

[LainFenrir]

• [x] Move the script from inside the scene to the root node
• [x] See if its possible to change the collision shape from script
• [x] Create a pool of collision shapes to be used to select the size of the ladder
• [x] Set DropArea position
• [x] Create the logic that will allow changing the size in the script
• [x] move the ladder colision to 0,0 make resources would need to load 2 resources, not worth it Possible sizes: 6, 8, 11, 16