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closes: #141

I started to develop this, and I have some open questions:

• I've implemented a test for the RawRectangleTemplate. @nelimee, can you clarify if this is the intended behavior?
• What should the scope of this Issue/PR be? Only build this for the available templates, including moves and so on.
• How do we define midlines for uneven-sized templates, e.g., where the number of qubit rows is even?

Todos:

• [ ] Add all templates
• [ ] Write tests, including scaling
• [ ] Figure out edge cases: Moving, uneven ...
• [ ] Documentation