Add new modules

[pash90]

In light of the recent projects I've done, I found that I use a few components quite often therefore decided to add it to the framework, just in case others may find it useful. I have added the following components along with documentation:

• [x] Auth containing requireAuthentication & doNotRequireAuthentication wrappers
• [x] Account containing AccountMod module and Account component
• [x] CenteredComponent containing CenteredComponent, Container, Row & Col for grid system
• [x] PortalModal allowing user to create Modals on the fly without any dependencies