update v10.1

The 'Camping' update serie gonna feature many classic camping scenarios along with new vegetation and versatile sprites.
~ Have marshmallows ready~ 

- Added trailers of different sizes (3 total) and a couple of variations to add on them (like wooden windows and roof iron plates)
- Added the trailer door animation (14 frames)
- Added a wooden entrance for the trailers
- Added some new inner angles to the water tileset so it can looks more round on the edges

See you and happy game-making! :)