Consolidate Primary and Additional Allocations

[lancepioch]

Only usage of primary allocation is for the magic egg variables of: {{SERVER_IP}} abd {{SERVER_PORT}}

Besides that, it's only visual.

Instead it could be better to just have the ports as egg variables and you just select (or add new) Allocation from that dropdown instead.

[lancepioch]

Concept of Allocation groups

[CodeExplorerX]

@lancepioch I created a similar request for an idea, but as I understand it, is it already planned exactly as I described or will there be any differences? #597