Bumped version to 0.15
Updated FluentAssertions nuget package
Bumped version to 0.13
Moved Update Data Url to Settings
Removed async from a test that didn't need it
Added Divination Cards to base types
Removed Thrusting One Hand Swords from Base Types
Added Jewel to ItemClasses.txt
Fixed theme serialization/deserialization and added them toolbar icons
Removed item block display settings popup