Changes to Create one or more shared environment variables

added the non-success response with the status 404

added the optional property created/items/lastEditedByPrincipal to the response with the 201 status

added the non-success response with the status 410

added subschema #3 to the request body anyOf list

added the optional property created/items/customEnvironmentIds to the response with the 201 status

added the new false enum value to the created/items/applyToAllCustomEnvironments response property for the response status 201

added the new false enum value to the created/items/decrypted response property for the response status 201

added the new true enum value to the created/items/applyToAllCustomEnvironments response property for the response status 201

added the new true enum value to the created/items/decrypted response property for the response status 201

endpoint added