Vcs fix geometry instantiation

[aashish24]

No description provided.

[aashish24]

Now:

In [2]: import vcs

In [3]: x = vcs.init()

In [4]: x.geometry() # None

In [5]: x.geometry(100, 100)

In [6]: x.open()

In [7]: x.geometry(200, 100)

In [8]: x.geometry(200, 100)

In [9]: x.close()

In [10]: x.geometry()
Out[10]: {'height': 100, 'width': 200}

[aashish24]

@doutriaux1 @danlipsa this is ready for review as well. Just look at the last 2-3 commits (rest came from the other branch for testing).

[aashish24]

Do: test

[aashish24]

Do: test

[danlipsa]

@aashish24 LGTM.