Changes to Create a new branch

changed the pattern of the request property description from ^[a-zA-Z0-9]+[a-zA-Z0-9- ]*$ to ^([a-zA-Z0-9][a-zA-Z0-9\-_./: ]*)?$

the description request property's maxLength was increased from 50 to 255

response property connectionString deprecated

added the new required request property mode

removed the request property configuration

removed the request property parentID

added the new optional request property backupConfiguration

added request discriminator

added BranchFromParent BranchFromConfiguration to the request body oneOf list

added the non-success response with the status 412

removed the required property scaleToZero from the response with the 201 status