Add novatel quality entry to gga parsing

[andcor]

Add Fixtype::WAAS to fix-quality entry of GGA sentence to support novatel GPS's

Fixes #154

[codecov]

Codecov Report

❌ Patch coverage is 25.00000% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.01%. Comparing base (f5b77fd) to head (329446a).

Files with missing lines	Patch %	Lines
src/sentences/fix_type.rs	14.28%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #155      +/-   ##
==========================================
- Coverage   80.33%   80.01%   -0.33%     
==========================================
  Files          39       39              
  Lines        1500     1506       +6     
==========================================
  Hits         1205     1205              
- Misses        295      301       +6     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.