[WIP] Feature/protection groups

[Foxtrek64]

Fixes #45

This change adds the ability to define groups which contain users and managers (a la #49).

Group managers are capable of adding or removing members from groups, such as a Captain of the Guard adding a guard to the guards group.

• [x] Group type created.
• [x] Groups added to HTMContainerLock
• [x] Group condition added to KeyLock and PrivateLock
• [ ] Commands added to manage groups.
  • [x] List groups
  • [x] Create groups
  • [ ] Delete groups
  • [ ] Search groups
  • [ ] Edit groups
• [x] Phrases (english only so far, I'll let translators come in when this is done.