Run here: run single/multiple command(s) from context menu

Description of the new feature / enhancement

Command palette does similar thing. However, things like these:

npm run dev

php -S 127.0.0.1:8888

code .

...are required to run in specific folder, the command palette can't do this currently.

So, run here is used in context menu, it allows users to add command and provide a list in context menu, so that we don't need to open a command prompt to run these single command.

Scenario when this would be used?

If a command is frequently used, this feature just requires (probably) 2 clicks to run. No need to open the command prompt and type the same command again and again.

Supporting information

-----------------------
|   Run here        > |  |-------------------|
-----------------------  | PHP Local Server  |
                         | NPM Dev           |
                         | Open in VS Code   |
                         |-------------------|

Some software actually implemented this for themselves. However, to have a single entrance would be great.

Start by reading the existing Command Palette and context-menu entry points to understand how commands are exposed and which folder is available as the working directory. Define how users add commands, support single or multiple commands, and display them under a Run here submenu. Done means configured commands can be launched from the context menu in the selected folder.