Enable multiple config support

[PercevalSA]

In my repo I have multiple yocto project to support multiples distro and multiple machines leading to different build folders and differents configs.
For the moment the extension does only support one project as if there is only one project per repo or workspace. Using multiple workspace is not possible for me.

Could you please add multiple build folders and configuration supports?

[rossburton]

Can you explain why you can’t use workspaces for this? That’s kind of what they’re for…

[deribaucourt]

@PercevalSA This is an interesting feature that may come in the future. Rather than multiple build folder configurations, I'd like to present bitbake multiconfigs a bit like what the selectable debug configurations in the activity bar: