Roslyn analyzers quickfix: Add option for Suppress / Suppressions

## Environment data
`dotnet --info` output: 5.0.203
.NET SDK (reflecting any global.json):
Version: 5.0.203
Commit: 383637d63f

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19042
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\5.0.203\

VS Code version: 1.56.2
C# Extension version: 1.23.12

## Steps to reproduce

I think this is more a feature request than a bug. I
Type some code that the roslyn analyzer shows the issue and the quickfix bulband shows the quickfix (ctrl+.)

## Expected behavior

Show option for suppression (as in visual studio) by pressing (ctrl+.) or clicking the bulb

## Actual behavior

Shows only quickfix options to fix the code, but no suppression option.