[New Feature]: Add `export` options for MintPy, QGIS

[scottstanie]

Checked for duplicates

Yes - I've already checked

Alternatives considered

Yes - and alternatives don't suffice

Related problems

#590 (reply in thread) and others have suggested making the results viewable in MintPy or other GIS programs. This issue tracks the ability to do so with a CLI tool

Describe the feature request

I need or want [...]