Cuvec

- add `dev_set()`
- add `CUDA_PyErr()` Pythonic CUDA error handling
- misc framework updates (21)
+ require `skbuild`
+ add py3.10 support & tests
+ bump status to stable
- fix docs tabbing

- add convenience functions: `ones`, `zeros_like`, `ones_like` & tests (20)
- remove unneeded `.cuvec` references

- add NumPy type checks (19 <- 18)
- add tests

- add `asPyCuVec<T>` & `asPyCuVec_T` converters (17)
- fix `example_mod` dangling pointer
- warn about `swigcuvec.asarray` dangling pointer cases
- faster startup (replace `pkg_resources` => `importlib.resources`)
- update documentation
- add & update tests
- minor metadata updates

- fix building on systems with GPUs supporting multiple `CUDA_ARCHITECTURES` (16)
- add [SWIG example](https://amypad.github.io/CuVec/#examples) docs

- fix `example_mod` memleak (15)
- create docs website (https://amypad.github.io/CuVec), add examples & migrate readme
- misc build & test framework updates