Add some angles for duck angle and dog mode

[ghost]

I did:

1. Add enums for duck angles (DUCK_FALLING, FACE_RIGHT, FACE_LEFT)
2. Add enums for dog mde (DOG_HIDDEN, DOG_RUN_TO_CENTER, DOG_PEEK_UP)
3. Added a few booleans into duck.c because the booleans should be expressed as true and false instead of 0 and 1 What I still need to do:
4. Add enums for the other duck angles? (FACE_UP, FACE_DOWN)

[Overload02]

Looks good as for the enum for the dog I would say put them in the dog.h because it's mainly used on the function void dog_SetMode(uint8_t pos); which is used in other files as well.