#36 Add some new animal stamps

[William Kendrick]

Some potential animal imagery we can try converting to stamps, from various Wikipedia articles. (Originally from multi-topic Feature request https://sourceforge.net/p/tuxpaint/feature-requests/287/ from @rhinoceros234)

Amphibia
Red-Eyed Tree Frog
Birds
Albino Male Peacock
Bullfinch
Cassowary
Cockatoo
Kiwi
Scarlet Macaw
Stork
Tit (Bird)
Fishes
Megalodon
Shark
Incest
Scorpion
Pseudoscorpion
Tarantula
Black widow
Whip scorpion (Russian Translation: Телифон)
Rhinoceros Beetle
Stag Beetle
Stink Bug
Lizard
Gecko
Chameleon
Monitor Lizard
Mammals
Tapir
Wolf
Coyote
Pygmy Hippopotamus
Babirusa
Warthog
Buffalo
Proboscis monkey
Lemur
Raccoon
Skunk
Orangutan
Unclassified
Octopus
Nautilus
Snake
Crocodile
Axolotl