Test Roblox File Format Fixtures

Workflow runs for Test Roblox File Format Fixtures

• Repaired abstract classes and some null props.

  failed:
  Test Roblox File Format Fixtures#3:Commiteb66492pushedbyMaximumADHD
  main

  Oct 27, 20261m 32s
  More actions for workflow run 3

• Fix missing references.

  failed:
  Test Roblox File Format Fixtures#2:Commitaee9b0dpushedbyMaximumADHD
  main

  Oct 27, 20261m 27s
  More actions for workflow run 2

• Add unit testing, fixed bugs with Content/Font.

  failed:
  Test Roblox File Format Fixtures#1:Commit6ca2c02pushedbyMaximumADHD
  main

  Oct 27, 20261m 8s
  More actions for workflow run 1