Update core modules module

[TheNigelist]

Create update module so that modules can be updated if issues arrive instead of having to issue a patch or an entire core update.

[TGates71]

Has been discussed and hoping to work it into a later v2 update. (Module self-update basically)

[Dukecitysolutions]

Let’s get this going. Should have been a feature from the start!

[TGates71]

Added to our private task manager.

[TheNigelist]

Someone needs to work their way through all the modules and figure out the correct version number of each one. Module version numbers don't get changed when they're updated.