Reduce the number of different optics modules

We are currently have a huge amount of different optics module variants. One contributing factor is the different angle needed for the different microscopes: 45 for the inverted, 0 for the Delta and -45 for the upright. May be we can just add 3 different optics dovetails to the optics modules to make them universal. That would not only simplify the build script but also make it easier for users to switch to a different configuration.

The epi illumination may me this a bit difficult but we should still try with it and even just making the regular modules universal would already save a lot of complexity.