Changes to Create app service

the service/current_deployment_id response's property format changed from uuid to no format for status 201

added the new optional request property cron_concurrency

added the new optional request property env_vars

added the new optional request property github_installation_id

added the new optional request property link_database_id

added the new console enum value to the request property source_type

added the optional property service/cron_concurrency to the response with the 201 status

added the optional property service/current_deployment_number to the response with the 201 status

added the optional property service/github_login to the response with the 201 status

added the optional property service/github_settings_url to the response with the 201 status

added the optional property service/github_status to the response with the 201 status

added the optional property service/max_previews to the response with the 201 status

added the optional property service/preview_count to the response with the 201 status

added the optional property service/previews_enabled to the response with the 201 status

added the optional property service/primary_domain to the response with the 201 status

added the optional property service/waiting_for_database to the response with the 201 status

the max_replicas request property's max was set to 6.00

the replicas request property's max was set to 6.00

the replicas request property's min was set to 1.00

endpoint added