MSTest suppression rules

Rules that support suppressing diagnostics from other rules.

Identifier	Name	Description
MSTEST0027	UseAsyncSuffixTestMethodSuppressor	Suppress the VSTHRD200: Use Async suffix for async methods diagnostic for all test methods as they are not required to follow the naming convention.
MSTEST0028	UseAsyncSuffixTestFixtureMethodSuppressor	Suppress the VSTHRD200: Use Async suffix for async methods diagnostic for all test fixture methods as they are not required to follow the naming convention.
MSTEST0033	NonNullableReferenceNotInitializedSuppressor	Suppress the CS8618: Non-nullable variable must contain a non-null value when exiting constructor. Consider declaring it as nullable. diagnostic for the TestContext property as its value is always initialized by the MSTest framework.