Changes to Register a new web application.

added the optional property result/data/db to the response with the 200 status

added the optional property result/data/health to the response with the 200 status

removed the optional property result/data/db from the response with the 200 status

added the new source_auth_failed enum value to the result/metadata/error_category response property for the response status 200

added the new source_credentials_required enum value to the result/metadata/error_category response property for the response status 200

added the new source_host_key_failed enum value to the result/metadata/error_category response property for the response status 200

added the new source_passphrase_required enum value to the result/metadata/error_category response property for the response status 200

api operation id WebApp_stage removed and replaced with WebApp-stage

added the new optional query request parameter parent

added the new optional query request parameter ssh_key_name

added the optional property result/data/build_command to the response with the 200 status

added the optional property result/data/env_editable to the response with the 200 status

added the optional property result/data/env_status to the response with the 200 status

added the optional property result/data/source/ssh_key_name to the response with the 200 status

added the optional property result/data/startup_command to the response with the 200 status

added the optional property result/data/use_existing_domain to the response with the 200 status