Configuraptor

Fix
* Internal values (_) should be updatable without TypedConfig._update logic ([`ef24673`](https://github.com/trialandsuccess/configuraptor/commit/ef24673f4304fa58d2b51a429efe7dc62ddc84f9))

Fix
* Key="" workaround no longer required ([`2c5fcaf`](https://github.com/trialandsuccess/configuraptor/commit/2c5fcaf8471176b82ebf5438d677e8db657018ab))
* **mapping:** Made mapping immutable, so MutableMapping actually has different behavior ([`a68ef56`](https://github.com/trialandsuccess/configuraptor/commit/a68ef5651a457cc08f0125f01f00b98ceb49c544))

Documentation
* **mapping:** Add example for TypedMapping ([`e430f40`](https://github.com/trialandsuccess/configuraptor/commit/e430f4065b5060fb2d2a4a8c134e8c42e9f66b74))

Feature
* **mapping:** Add configuraptor.TypedMapping and .TypedMutableMapping to support **unpacking (but not on default TypedConfig) ([`b4c6b9d`](https://github.com/trialandsuccess/configuraptor/commit/b4c6b9dc01cfd6727187310610e750fa6ada3234))

Feature
* **format:** Allow TypedConfig._format ([`0b46646`](https://github.com/trialandsuccess/configuraptor/commit/0b46646fec153a6bcdfea0c40b872da884aa9146))

Fix
* **toml:** Tomlkit had own types, move to tomli ([`0b5f0a4`](https://github.com/trialandsuccess/configuraptor/commit/0b5f0a4333f5767fc2329cebb040c6cf4c78eff9))

Fix
* **310:** Backwards compatible code ([`8f90aec`](https://github.com/trialandsuccess/configuraptor/commit/8f90aec43fd1fcd403f1b68d26e4d605ea346014))