Determines whether the specified path is a file package.
Original signature is '- (BOOL)isFilePackageAtPath:(NSString *)fullPath'
Available in Mac OS X v10.0 and later.


- fullPath (NSString)
- The full path to examine.

YES if the path identifies a file package; otherwise, NO if the path does not exist, is not a directory, or is not a file package.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)