Class TransitionManager

Takes a blank transition object and adds all the hooks necessary for it to behave like a state transition.

Runs the transition, returning a chained promise which:

• transforms the resolved Transition.promise to the final destination state.
• manages the rejected Transition.promise, checking for Dynamic or Redirected transitions

Registers a handler to update global $state data such as "active transitions" and "current state/params"

Registers view hooks, which maintain the list of active view configs and sync with/update the ui-views

Registers onEnter/onRetain/onExit hooks which delegate to the state's hooks of the same name, at the appropriate time

Registers eager and lazy resolve hooks