GeorgeAlexandria

* Check that a new constructions in c# 8 are being supported or append supporting of them * Investigate constructions that can be classified as a new classifications

I assume that the supporting of F# can be done using [FSharp.Compiler.Service](https://github.com/fsharp/FSharp.Compiler.Service), if so it would be nice to release it

- [x] Base tests for identifier declarations - [x] Base tests for identifier access - [x] Tests for identifiers in a xml comments - [x] Tests for vs14 - [...

- [ ] Annotate - [ ] Code files which are not included to solution - [ ] Plain text files which contain a code

Extends the supporting of font weight

1

Currently CoCo supports bold font for classifications but supporting can be extended to the [other weights](https://docs.microsoft.com/en-us/dotnet/api/system.windows.fontweights?view=netframework-4.7.2#remarks).

Supporting of "Classify as" option

1

Will be good to add possibility to classify item as on of others or just don't classify it. This opens way to classify items or ignore them classifications that already...