Support SpotBugs

[testforstephen]

Customer feedback:
I would like to see a tool like spotbugs that can do static analysis on class files.

[sdykae]

up

[fxrobin]

Up, still nothing ?

[shblue21]

Hello. I'm developing the Spotbugs extension for VS Code. There's still a lot to work on, but please feel free to use it and I'd appreciate any feedback!
https://marketplace.visualstudio.com/items?itemName=shblue21.vscode-spotbugs
https://github.com/shblue21/vscode-spotbugs