Vscode-material-icon-theme: Add support for Verilog and VHDL

[Yohanna]

It would be nice to add support for Verilog & VHDL languages.

| Language | Extension |
|----------|-----------|
| Verilog | *.v |
| VHDL | *.vhd |

Thanks

[PKief]

What do you think, is it fine?

[Yohanna]

That's Perfect! Thanks a lot :)