CLI Commands

[erayalkis]

Addressing #156 and #157 , this PR adds CLI commands.

Additions and changes:

• Creates new class for handling arguments passed into the goby executable
• Adds a new command "init" for creating project in the current directory
• Rewrites the Scaffold::Simple method to fit the requested functionality in Need command goby init #157
• Adds a "--version" flag for printing current goby version to the console (Currently has two aliases: --ver and --v)

RSpec passes all tests, and the new command functionalities fit the listed issue expectations.

[nskins]

Hi @Blissblass! Thank you for submitting a PR. I took a quick look at your changes, and they look good. I ask that you be patient with me as far as merging since I do not work on this project very consistently anymore. Regardless, it looks like you've done a good job and I appreciate the contribution!

[erayalkis]

No worries, take all the time you need! And thank you, I'm glad I can be a part of this amazing project!