Move learn and nickname.

[MattiasBuelens]

Implements a bunch of screens from #41:

• [x] Give a nickname to this Pokémon? = Nickname
• [x] Forget or keep a move? = Delete move
• [x] Stop learning new move? = Give up move
• [x] Which move to forget? = Replace move / Forget move

[hftf]

Is the ref for the "New Move" (blm) button supposed to be NEW?

[MattiasBuelens]

@hftf Yes.

When clicking the move to be learned, it shows a screen similar to "Forget move" but with the "Forget" button replaced by a "Cancel" button which takes you back to "Forget or keep a move?". (Indeed, that's two different Cancel buttons on the same screen.)

Thus, it's not really the same screen and I left it unimplemented for now.

[hftf]

Got it, thanks.