Repair encoding error in actors/props/pf_mushr_fr/charclasses/pf_mushr_fr.bmsad

[steven11sjf]

bmsad.py L270-L282 for non-formatting changes.

• IfThenElse checks for a too-small component field length and replaces the correct value
• Throws an error on parsing if the size of a DreadComponent.fields is 0x1C and DreadComponent.fields.fields is not length 1 and an eDefaultCollisionMaterial
• applied / formatting to bmsad.py instead of = formatting in applicable locations
• updated tests to check parse-build-parse on this file

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 76.24%. Comparing base (dce704e) to head (1c3ac81). Report is 3 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #219 +/- ## ======================================= Coverage 76.24% 76.24% ======================================= Files 76 76 Lines 3528 3528 ======================================= Hits 2690 2690 Misses 838 838 ```

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.