756 - tweak vgo param to be string
* vgo param represents package name of project
756-vgo-support - create in current working directory
756-vgo-support - init outside of GOPATH
756-vgo-support - work on init cmd
formatting
* Refactoring code that unnecessarily declares a map before making it.
* Cleaning up gpl3 formatting to match other licenses.
* Adding functionality that allows specifying custom license header
and text in cobra config.
* Using license header and text as templates so that they can use
template variables (for custom and gpl3 licenses).
* Adding ability to specify no license.
* Adding custom license example to README.
