Graphix

Added

- Added flow and gflow verifiers ([99](https://github.com/TeamGraphix/graphix/issues/99)).
- Added `gflow.flow_from_pattern` method.

Fixed

- Fixed bug in index permutation within `linalg.MatGF2` and `gflow.find_gflow`.
- Fixed `gflow.gflow_from_pattern` method.

Changed

- Renamed methods; `gflow.flow` and `gflow.gflow` are now `gflow.find_flow` and `gflow.find_gflow`, respectively.
- `Pattern.seq` is renamed into a private field `Pattern.__seq` and
`Pattern.Nnode` is now a read-only property. `Pattern` constructor
now only takes an optional list of `input_nodes`, and can only be
updated via `add` and `extend`. `Pattern` are now iterable and `len`
is now defined for patterns: we should write `for command in pattern:`
instead of `for command in pattern.seq:` and `len(pattern)` instead
of `len(pattern.seq)`. `N` commands are no longer added by `Pattern`
constructor and should be added explicitly after the instantiation.
- Changed the behavior of visualization in the `GraphVisualizer` class.
Prepared a `visualize` method that visualizes based on the graph only,
and a `visualize_from_pattern` that visualizes based on the pattern.
Both search for gflow or flow, and if found, plot them. If not found,
in the case of from the graph, only the graph is drawn, and in the case
of from the pattern, both the graph and all correction sets are drawn.

Added

- Added `rustworkx` as a backend for the graph state simulator
- Only `networkx` backend was available for pattern optimization.
By setting the `use_rustworkx` option to True while using `Pattern.perform_pauli_measurements()`,
graphix will run pattern optimization using `rustworkx` (98)
- Added `.ccx` and `.swap` methods to `graphix.Circuit`.

Fixed

- Fixed gflow-based graph visualization (107)

Added

- internal updates of gflow and linear algebra functionalities:
- A new option `mode` in `gflow.gflow`, specifying whether to obtain all possible maximally delayed gflow or not (80)
- New `MatGF2` class that computes elementary operations and Gauss-Jordan elimination on GF2 field, for faster gflow-finding (80)

Changed

- Removed `z3-solver` and added `galois` and `sympy` in `requirements.txt` (80)

Removed

- Removed `timeout` optional arguments from `gflow.flow` and `gflow.gflow`.

Fixed

- Bugfix conditional branch in `gflow.gflowaux` (80)

Added

- Add support for python 3.11

Added

- Visualization tool of resource state for a pattern, with flow or gflow structures (78)
- Visualize the resource state by calling `Pattern.draw_graph()`
- Tool to extract fusion network from the resource state of a pattern (87).

Changed

Fixed

Added

- `input_nodes` attribute added to the pattern class (88)
- `leave_input` optional argument to `Pattern.perform_pauli_measurements()` which leaves the input qubits unmeasured during the optimization.

Changed

- bump networkx version to 3.* (82)