update v17.4

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- Added a new character named Bruce with every animation available 

- Revamped the very old elevator mini-theme.
I remade the walls (2 types) and the floor, added an open animation for each elevator door (2 for the entrance, 1 for the exit), remade many objects and modified the outline of everything.
The elevator mini-theme can be found in the "Generic" theme file.
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*Everyone who already bought the asset can get the new stuff for free

See you and happy game-making! :)