[Bf-python] Depreceing... and other proposed changes

[Campbell Barton]

Hi, a few things I'd like to discuss


Can we depricate NMesh.PutRaw() -
Too many scripts use this in a way that could overwrite existing data 
(if theres a name conflict), and I dont see its that relevent anymore 
since one can link an object to the scene, set the layers and select it. -
Its also out of line with other objects and keeps scripters  from being 
'scene aware'


Can we make -vec  return a copy and un-depricate vec.negate(), -vec 
should not modify wrapped data.

..other changes....

Add Mesh.Unlink(me) for zero user meshes only. current way meshes work 
is good but in some cases- BPyMesh.getMeshFromObject() - still needs to 
link to an object for triangulating which means it will not be de-allocated,

Add Armature.New()


Change the way Object data linking works by changing Object.New()

    currently..

    ob= Object.New('Mesh')
    scn.link(ob)
    data= ob.data


    propose we pass the data to the object instead so objects can never
    exist without data

    data= Mesh.New()
    ob= Object.New(data)
    scn.link(ob)

    This way the objects type is dictated by its data type so no need to
    pass a string. and its also saves an extra ob.link().


- Cam