Return mount point that, where the given path is reside on

		:param file_path: target path to search
		:return: WMountPoint or None (if file path is outside current mount points)

def mount_point(cls, file_path):
		""" Return mount point that, where the given path is reside on

		:param file_path: target path to search
		:return: WMountPoint or None (if file path is outside current mount points)
		"""
		mount = None

		for mp in cls.mounts():
			mp_path = mp.path()
			if file_path.startswith(mp_path) is True:
				if mount is None or len(mount.path()) <= len(mp_path):
					mount = mp

		return mount