Mesh.getVertexNormals missing

[pmolodo]

To reproduce:

import pymel.core as pm
mesh = pm.polyCube()[0].getShape()
mesh.getVertexNormal(0, angleWeighted=False, space='world')  # this works
mesh.getVertexNormals(angleWeighted=False, space='world')  # this doesn't exist

There's no reason I can see why this wrap isn't being created...

[pmolodo]

Added in develop branch: b546f10

It turns out this function was simply disabled in apiToMelData - not sure why, possibly because of a legacy bug... or maybe because we couldn't easily get undo for the corresponding set functions...?

Anyway, I turned this function on, as well as:

'getVertexColors'
'getVertexNormals'

...and added tests.

Making another ticket to investigate the other disabled methods at some point:

#428