Add more installation methods

[reaganmcf]

Important for our first major release to have as many ways to install on every platform

• brew
• aur
• curl and pipe into shell

[reaganmcf]

#29 started this, but it has to be merged in order to test it. Once i have worked out the basics of it I will open another PR with the finished install script, as well as brew and AUR installation methods

[reaganmcf]

#31 Got the install script working

[reaganmcf]

#34 Is ready to merge and allows installation using an AUR helper like yay