Update 1.1.2: Playable dog

Hey all.

Once again, I've updated Shepherd with a few endgame improvements, and the ability to control the dog as player 2!

Features:
- The dog is now controllable by player 2! Once the dog is bought, you can take control over it by pressing 'X' on the second controller. (For keyboard controls, this is 'Q' or 'A', and moving around is with the ESDF keys.), the dog has also gained a few new effects to work along with it.
- At the end of week 3, the total amount of earned cash accross the 3 weeks will be displayed as well, try to reach for a highscore!
- Selling has been added back to the catalog. Their sell value is twice the earnings by day. this time, you'll have to hold "Left" and "X" to sell a sheep.

Changes:
- After week 3, there is now a more likely chance a varied enemy will spawn.

Note:
It was intended that the dog was meant as an addition for week 2, and such it's priced to be bought around that part.
It has not been balanced yet to make it more accessable at the start (as an ally at the start is pretty strong), so I'm not sure how that may impact the second player experience. That's something I've yet to consider.

Shepherd's code is now also close to it's limit, so more features in the future are likely off the table for this one.

Still, I'm glad that I've come back to this, as Shepherd has almost been doing better now than since it's release!
So I'm very glad with the support I've recieved so far!

Thank you all a lot! I hope you'll have fun with this addition!