* Updated pytket version requirement to 1.3. * add new functions for architecture conversion between pytket and pyzx: `tk_to_pyzx_arc`, `pyzx_to_tk_arc`, `tk_to_pyzx_placed_circ` and `pyzx_to_tk_placed_circ`
0.21.0
-----------------
* Updated pytket version requirement to 1.2.
0.20.0
-------------------
* Updated pytket version requirement to 1.1.
0.19.0
-------------------
* Updated pyzx version requirement to 0.7. * Updated pytket version requirement to 1.0.
0.18.0
----------------------
* Updated pytket version requirement to 0.19. * Drop support for Python 3.7; add support for 3.10.