Improved documentation for enqueue_fill_buffer and enqueue_copy_buffer

Resolves #159 Added module for scalar type mapping from OpenCL type names to numpy types. Refactores cl.arrays to use the new file to avoid redundancy

Multi setitem

See merge request !3

Modify the kernel to fill all indicies if there is only one value passed
in values array, and to use modulo mode otherwise (to match numpys
behavior).

`get_put_kernel` from array multi_put.

* Update `get_put_kernel` to check if fill value exists, and use it if
  so.

Prep for Flake8 during CI

See merge request !2

Fix typo in package name while fetching resource filename: s/pyopencl…

Fix Exception message and allow queue arg usage for `multi_put`.

Array: implement bitwise integer ops.

This adds support for `&`, `|`, `^`, `~`

See merge request !1

This adds support for &, |, and ^.

Trivial spacing and variable name changes

Image processing median filter

Update benchmark.py - Fixing compiler warning