Under annotations

[hflexgrig]

Here in this pr I'll try to bring under annotations ( \underbrace, \underbracket ) with display and latex support

[hflexgrig]

@Happypig375 Implementation might take a few days, especially display part is a quite complicated, on a Mathify I've spent more then week :) I'll do a small commits, please track all my commits for better quality and quick fixes.

[hflexgrig]

@Happypig375 Just ran the dotnet format command on a core CSharpMath.csproj , and it broght changes on 53 files, similar to what it changed that you commented already. Lats first resolve problem with autoformatting. I'm using vs code ide, which ide do you use and which formatters? don't want to bring lots of formatting changes on my pr

[Happypig375]

@hflexgrig I just use Visual Studio and it formats things on the fly. You can pull request all the auto formatting. The unnecessary space should be fixed though.