Refactor plugin and add .gitignore file

Hi AnomalousRei,

I saw that you'd open sourced your Infected plugin, and decided to see if I could help contribute to it :chart_with_upwards_trend:

I've added a gitignore file, refactored the main plugin package to use lower case and a few other small things, such as adding a few ```equals()``` methods to the plugin.

I've also added OresomeCraft's maven repository to the pom.xml file, as it contains an ```sk89q-command-framework``` package.

I hope you don't mind me editing the plugin's code :heavy_check_mark:

Thanks,
psgs