Numpoly

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CHANGED:
* Documentation updates.

==========================

ADDED:
* Polynomial division support!
* Polynomial functions: `poly_divide`, `poly_divmod`, `poly_reminder`.
* Numpy functions:
`true_divide`, `divmod`, `remainder`. `where`, `zeros`.

===========================

ADDED:
* Numpy function additions:
`apply_along_axis`, `apply_over_axes`, `expand_dims`.

===========================

FIXED:
* Bugfix to `bindex` in handle of indices around 0.

===========================

ADDED:
* Support for enforced naming convention (for use in Chaospy).

===========================

CHANGED:
* Refactor of `monomial` again to deal with speed issue.