Add other Face Detection methods (not just Viola Jones)

[jakewilliami]

This includes adding documentation and giving wider examples of how to use this repo. Make test files and such. I don't know how packages in Julia work...yet!

[jakewilliami]

Adding LICENSE (f356de1) and VERSION (38b6e98) is a step towards this

[jakewilliami]

A step towards this was made in fa4352c

[jakewilliami]

A step towards this (brought to my attention by @dmipeck) would be to not use absolute paths (rather, dynamic paths relating to where the file is being run from; e.g., @__FILE__). Also ensure we get a setup.bat and things work on Windows machines.

[jakewilliami]

https://www.youtube.com/watch?v=QVmU29rCjaA