Include VST3 plugin FX as an FX slot

Feature request for MACOS
not sure if this would be at all possible, given all the processing that is taking place under the hood.
but having choice is always a good thing!

also add the ability for… serial VST3(multi) chains be loaded & and saved as a preset for ease of loading albeit recalling into the FXslot

Thanks for the suggestion @7nz! I have forwarded this to the dev team for consideration.