Make node ID unique to the node type

[visr]

Needed for #1110.

Before node IDs were globally unique. If you had the ID, you could look up the type in the Node table. When designing #1110 we came to the conclusion that this was not the right choice. It requires you to be aware of the IDs that are used throughout the model, whereas with this you only need to make sure that Pump #5 doesn't already exist.

Most of the updates in this PR were to correct the tests. Some of the code and error messages became easier to read. If we talk about a node then we always know what the type is, there is no need to look it up first.

Most tables stay the same, e.g. if you have a Terminal / static table with a node_id Int column, you know that this refers to a Terminal NodeID. Only when connecting to other nodes do we need to specify the type next to the ID. So the Edge table now gets from_node_type next to from_node_id, the PidControl / static gets listen_node_type next to listen_node_id, etc. These extra columns are currently automatically filled in by Ribasim-Python on model save, hence they don't require changing the test models.

In terms of implementation, this basically adds the type field to NodeID and fixes the resulting errors.

struct NodeID
    type::NodeType.T
    value::Int
end

It does not yet test if models with the same node IDs (Pump #1 and Basin #1) work, but this is hard to do right now with Ribasim Python, so best left for a later moment.

[visr]

These schemas were not used in the core, and their translations in Python were also not used, they are handwritten elsewhere. So best to just remove.

[visr]

This should be removed when Ribasim-Python is ready for it.

[Hofer-Julian]

Julia Tests are still red :)

[Hofer-Julian]

A few small nitpicks, but apart from that it looks good