Update to 1.7.0 alpha.2

[xylar]

This brings in:

• mpas_tools v1.0.0 -- modernizes command-line tools (including renaming them)

As a result of the mpas_tools update, many command-line tools used by landice have been renamed. The relevant documentation has also been updated.

Checklist

• User's Guide has been updated
• Developer's Guide has been updated
• Documentation has been built locally and changes look as expected
• Document (in a comment titled Testing in this PR) any testing that was used to verify the changes

[xylar]

This needs:
MPAS-Dev/MPAS-Tools#596
MPAS-Dev/MPAS-Tools#597
and a new release of MPAS-Tools (v1.0.0) before it will be useful.

[xylar]

Testing

I ran both the pr and full_integration suites on Chrysalis with this new version of mpas_tools and the associated changes in this branch. I didn't check that thing were BFB however and I need to do that.

[xylar]

@trhille and @matthewhoffman, I will need your help to make sure I didn't break anything for you 2. Can you run tests that go beyond full_integration to make sure other affected tests aren't broken? Then, can you review this and MPAS-Dev/MPAS-Tools#596 together?