Handle missing NE relocation types

[disinvite]

I am working on a PR that will expand NE support to the point where we can actually use it with reccmp. Some non-critical things are missing, so I am creating this first so we have an issue to attach to the # TODO comments.

In each case, we would benefit from having a sample NE image that demonstrates the relocation. SKI.EXE is missing all of these.

These are not handled by Ghidra:

• OSFIXUP relocations
• Additive relocations

This is handled by Ghidra but I would like to test myself with an example:

• LOBYTE relocations

This is not in SKI.EXE but I have manually confirmed that this works using a different image. The TODO item is to add a test.

• IMPORTNAME relocations