iotop: Update to version 1.22 coming from new repository

iotop: Update to version 1.22 coming from new repository

- Existing iotop is version 0.6 from 2013. In that original repository there have been 42
   commits since then up to 2022-03-07 but without any version release.
- In 2020 a new repository was started, based on the original iotop but converted to only
   C code with no python. This is being updated on a regular basis with version releases.
   This version was released in July 10th 2022. There have been n21 releases since this
   repository was started.
- Built and tested this version of iotop and it gave a screen with very similar look to
   the original version. The new version has the ability to scroll all the entries whereas
   the original one required the window to be made larger to show more entries.
- The new version also has a column showing a graphical view of the amount of traffic as
   well as the actual numbers.
- Overall this looks to match what vthe original iotop did, plus with a few extras and is
   being regularly maintained with new releases.
- Updated rootfile
- This version of iotop is automatically placed in /usr/sbin as the original used to be.
- New repository is at https://github.com/Tomas-M/iotop
- Changelog can be seen at the above repository. It is too large to include here with
   21 version updates.

Tested-by: Adolf Belka <adolf.belka@ipfire.org>
Signed-off-by: Adolf Belka <adolf.belka@ipfire.org>