Community bug bash for Swift and Vim

[jerrymarino]

It could be valueable to get feedback from the swift community around this project and overall support in Vim.

Consider:

• setting a dummy example project and write instructions to make it easy to use and test
• reaching out to interested folks on github, slack, and twitter to ask them for feedback
• offer to help setting up Vim in key users Swift projects

[jerrymarino]

I posted up a basic project which includes an OSX and iOS app. This may be useful for the YCMD team and other people to test this out while the initial commits are submitted to YCMD.