As a service author, I want service instance creation parameters mapped to SPRING_APPLICATION_JSON on deployed applications

[royclarkson]

GIVEN that I specify a backing app with the name: mapping-app
WHEN cf create-service my-service -c '{"key": "value", "compoundKey": { "subkey1": "subvalue1", "subkey2": "subvalue2" }}'
THEN I can see the SPRING_APPLICATION_JSON environment variable for the backing app mapping-app containing the value:

"{"transformed.key": "value", "other.transformed.compoundKey"; { "subkey1": "subvalue1", "subkey2": "subvalue2" }}"

where the mapping of keys from the request parameters to backing app env is configurable by the implementing service broker