This adds the StatusMap type, which can be used to gather the Status of
a given kubernetes resource. A StatusMap can be created from a
document.Bundle and represents all possible Statuses for all
CustomResources, and the conditions that must be met for those statuses
to be valid.
Relates-To: #73
Change-Id: If2cba0bb9890fe28feff0c890bb8036489196fc4