* .drone.yml: This is now a generated file, based on .drone.jsonnet
* .drone.jsonnet: Add jsonnet drone pipeline configuration to replace existing .drone.yml
file. Note, currently this is used to manually generate .drone.yml. I need to determine how
to handle jsonnet libraries effectively as drone's built in jsonnet support does not allow
for importing libraries. In addition to converting to jsonnet, the pipeline was enhanced with
promotion and deployment functionality that has not yet been tested.
Collin J. Doering