Rms-vicar

- Require VICAR labels to be standards-conformant unless the new `strict=False` parameter is given to a constructor.
- In addition to the existing exception for Cassini ISS labels, add a non-strict exception required by Galileo SSI.
- Improve performance.
- Improve docstrings.

What's Changed
* Remove Python 3.7 from pyproject.toml by rfrenchseti in https://github.com/SETI/rms-vicar/pull/16


**Full Changelog**: https://github.com/SETI/rms-vicar/compare/v1.0.5...v1.0.6

What's Changed
* Remove Python 3.7 support by rfrenchseti in https://github.com/SETI/rms-vicar/pull/15


**Full Changelog**: https://github.com/SETI/rms-vicar/compare/v1.0.4...v1.0.5

What's Changed
* Better support for nested info in a label by markshowalter in https://github.com/SETI/rms-vicar/pull/14


**Full Changelog**: https://github.com/SETI/rms-vicar/compare/v1.0.3...v1.0.4

What's Changed
* Changes for andrew by markshowalter in https://github.com/SETI/rms-vicar/pull/13


**Full Changelog**: https://github.com/SETI/rms-vicar/compare/v1.0.2...v1.0.3