[Feature Request] support for multiple projects in one workspace

[H-Sachse]

Please add support for multiple projects in one VScode workspace.
Right now I work with a workspace with multiple independent VHDL source trees.
I put a vhdl_ls.toml in each project folder, but only one seems to be active.
Also when opening files with the same declarations from other source trees I get "A primary unit has already been declared with name 'xxx' in library 'xxx'" or "Duplicate package body of package 'xxx'" error messages.

So what I would like is to have separate namespaces for each source tree so I can work on multiple source trees simultaneously without them interfering with eachother.

[Schottkyc137]

I think this is the more appropriate appropriate place. The missing LSP capability should be Workspace Folders