Add new 'show switch virtual' parser for iosxe

[frdaigle]

Description

Add new parser for 'show switch virtual' for iosxe

Motivation and Context

There was no parser for 'show switch virtual' for iosxe devices that are setup for VSS

Impact (If any)

None

Screenshots:

Checklist:

• [X] I have updated the changelog.
• [ ] I have updated the documentation (If applicable).
• [X] I have added tests to cover my changes (If applicable).
• [X] All new and existing tests passed.
• [X] All new code passed compilation.

[frdaigle]

I've updated code from comments

[frdaigle]

Workflows runs are always returning the following error, is there anything I must fix ?

pkg_resources.VersionConflict: (genie.libs.parser 23.2 (/home/runner/work/genieparser/genieparser/src), Requirement.parse('genie.libs.parser<23.4.0,>=23.3.0'))

[GerriorL]

We released the 23.3 version of pyats - try merging the latest copy of our master branch into yours, and then pushing that merge commit.