xunit: define codefixes for SetAsserts #143
Description
The asserts defined in https://github.com/xunit/assert.xunit/blob/main/SetAsserts.cs
- Contains(T expected, ISet set) add support for xunit SetAsserts Contains #234
- Contains(T expected, IReadOnlySet set) add support for xunit SetAsserts Contains #234
- Contains(T expected, HashSet set) add support for xunit SetAsserts Contains #234
- Contains(T expected, ImmutableHashSet set) add support for xunit SetAsserts Contains #234
- DoesNotContains(T expected, ISet set) add support for xunit SetAsserts DoesNotContain #235
- DoesNotContains(T expected, IReadOnlySet set) add support for xunit SetAsserts DoesNotContain #235
- DoesNotContains(T expected, HashSet set) add support for xunit SetAsserts DoesNotContain #235
- DoesNotContains(T expected, ImmutableHashSet set) add support for xunit SetAsserts DoesNotContain #235
- ProperSubset(ISet expectedSubset, ISet? actual)
- ProperSuperset(ISet expectedSubset, ISet? actual)
- Subset(ISet expectedSubset, ISet? actual) add support for xunit SetAsserts Subset #236
- Superset(ISet expectedSubset, ISet? actual)