added barebones of readonlyvec2d
added barebones of vec2d
added scalemap

Signed-off-by: Marcel Schwittlick <marzzzel@gmail.com>
added barebones of axis2d

Signed-off-by: Marcel Schwittlick <marzzzel@gmail.com>
Merge branch 'master' of http://github.com/mrzl/ofxToxiclibs