Install (g-)vim.

[#78318184]
Vendor Mixlib::ShellOut library.

[#78318184]
Import ssh_known_hosts version 1.3.2
Import partial_search version 1.0.8
Add basic SSH configuration.

[#78318184]
Register public key with GitHub for clean SSH access.

[#78318184]
Install Vim.

[#78318184]
Merge branch 'install_vim' into master

[Finishes #78318184]