tqec: A Python package for topological quantum error correction

`tqec` is a Python-based open-source compiler that takes a logical-level quantumcomputation model represented as connected 3D primitive blocks and translates it into a detailed,fault-tolerant, physical-level circuit. The result is a `Stim` circuit (Craig Gidney, 2021) with all the detailedinformation needed for simulation or to run on real quantum hardware. This enables both quantum algorithmdesigners and experimentalists to rapidly iterate and obtain exact low-level circuits, facilitatingefficient performance simulation or experimental demonstration. At present, `tqec` isprimarily centered on the surface code.