Creates a new directory in the vault.
cbvault.createDirectory(directory, createParents, [callback])
The 'callback' parameter specifies a function which will be called when the operation completes (or an error is encountered). If the 'callback' parameter is not specified, then the method will block and will not return until the operation completes (or an error is encountered).
The callback for this method is defined as:
'err' is the error that occurred. If there was no error, then 'err' is 'null'.
'err' has 2 properties which hold detailed information:
This method creates a new directory in the vault at the path specified by Directory.
The value passed for Directory must be a vault-local absolute path.
The CreateParents parameter specifies whether non-existent parent directories in the specified path should be created as well. If this parameter is false, and one or more parent directories are missing, this method .
Note: This method can only be called when Active is true, and cannot be called within events.