Currently, any document name or schema referenced in the Shipyard
code base is a hard-coded string. Often times, these strings are
repeated throughout the code. This patch set adds a new configuration
section to shipyard.conf to define document names and schemas so they
can then be referenced in the Shipyard code via the oslo
configuration object. This functionality will be important for
upcoming Shipyard features which will call for more documents to be
validated as well as some new Shipyard-created docs.
Change-Id: I34ae8cd578bab730d004c3d176e3817b5a45c89e
222b074cb1