Custom Model Birds

I'm not that familiar with version format thingy so it's just major.minor or something like that like major being adding new birds or smt and minor being a little fix

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Custom birds 2.0

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Added peacock (28), mallard (29), kingfisher (30) and blue jay (31).

Increased the size of hummingbird, swallow, wren, blue tit and cockatiel in the GUI.

Made the canary smaller in the GUI.

Moved heron in the GUI.

Fixed crow tail texture.