Cleanup analyzers

- `COMAnalyzer` uses a link with en-us locale. The locale should be removed so that the user gets redirected to his own culture.
- `SupportedDiagnostics` in ALL analyzers uses `=> ImmutableArray.Create(..)` which will allocate a new array every time the property is accessed. It should be `{ get; } = ImmutableArray.Create(..)` instead.
- `ConfigureGeneratedCodeAnalysis` is passed `GeneratedCodeAnalysisFlags.ReportDiagnostics`, which doesn't make much sense. It should probably be `GeneratedCodeAnalysisFlags.Analyze | GeneratedCodeAnalysisFlags.ReportDiagnostics`. This can be unit tested easily.