Expose Vector2::clamped() to scripts
Expose Vector2::clamped() to scripts

Needed this and wondered that there's no built-in function for it.
So I wanted to implement it and saw that it's actually already there, just wasn't bound ^^

(cherry picked from commit c21412fa7e098ac31b5d667d4d9f8eee3f12a2cd)

pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1,pixelpicosean/my-godot-2.1