Close to first GA release

CHANGE DESCRIPTION

Developer efficiency:

• Merged all cf deploy errands into one
• Merged all cf delete errands into one, and made it fail-proof (FLW)
• Enabled running of these errands outside of opsmgr & bosh
• Included pcf command line utility to interact with opsmgr from CLI
• Provided bin directory to make it easier to add the tile generator to the path

Continuous Integration:

• Included Concourse pipeline with automated deployment through Ops Manager
• Incorporated Concourse pool feature to manage PCF environments
• Discarded pre-built sample artifacts and instead build them from source
• Included real sample app that can also function as service broker
• Also automatically package that app in a docker image for testing of docker features

Features:

• Support all cf manifest features (and use the same syntax)
• Enabled automatic provisioning and binding of services
• Implemented rudimentary blue/green deploys on tile upgrades
• Made service bindings persistent across upgrades

Other changes (all of which likely break prior tile repositories):

• Removed all prior properties that duplicated cf manifest features
• Made some terminology changes
• Made many properties global instead of per-package (org, space, dynamic_service_plans)