Avoid redundant file system maximize actions (#663980)

When GParted performed operations or combinations of operations,
such as:
  a)  copy to same or smaller size destination partition
  b)  move to same or smaller size due to alignment change
  c)  resize to smaller size
a redundant maximize file system operation would occur.

Normally these redundant maximize operations to grow the file
system to take up all the space in the partition were not harmful.

However in situations where libparted failed to inform the kernel
of partition changes, then the extra maximize operation would
grow the file system to be the original partition size.  In cases
where the original partition was larger than the new partition
size, this caused problems because the file system would be
larger than the partition on reboot.

This enhancement avoids redundant file system maximize actions on
copy, move, and resize, and should help reduce problems described
in the following links:

WARNING! Problem Resizing File Systems with GParted
http://gparted-forum.surf4.info/viewtopic.php?id=13777

Bug #601574 - ERROR: Current NTFS volume size is bigger than the
              device size!

Bug #604298 - Problems resizing file systems with
              gparted-live-0.5.0-3

Closes Bug #663980 - Avoid redundant file system maximize actions
                     on copy, move, and resize