Mecha

Fix
* Default argument parser properties ([`7e63b14`](https://github.com/mcbeet/mecha/commit/7e63b147ad1f248a84c4e8f398f5cb28295dab36))

Fix
* Tweak nested yaml ([`9c69a1d`](https://github.com/mcbeet/mecha/commit/9c69a1d21f581e8e9bef7e44cb41e7c6f2f18025))

Fix
* Update deps ([`146c8bc`](https://github.com/mcbeet/mecha/commit/146c8bcfcf8a4bf5ed5053980c878ffb061ed12b))

Fix
* Accurate error underline for tab freaks ([`8f1064d`](https://github.com/mcbeet/mecha/commit/8f1064d5f4d2bd9fd8dd2b357d0626de933b596e))

Fix
* Improve typing for AlternativeParser ([`08727c4`](https://github.com/mcbeet/mecha/commit/08727c4a8256ad8afa459eb76c02f7f7785555e4))

Feature
* Use context generator to implement nesting ([`c15e258`](https://github.com/mcbeet/mecha/commit/c15e25864de0f29aba4711c49b0d819e815b565d))
* Use context generator to implement nested_resources ([`4036ad5`](https://github.com/mcbeet/mecha/commit/4036ad5bd98695103f430253a2f3abffbe78a320))
* Use context generator to implement inline_function_tag ([`48dcbd7`](https://github.com/mcbeet/mecha/commit/48dcbd70633cce9a77be713fee74b468e109465f))
* Support yield in dispatcher directly and allow using yield/return for diagnostics ([`c746f5a`](https://github.com/mcbeet/mecha/commit/c746f5abe87f732e20079b2abead2fd2b821191f))

Fix
* Update lint_basic to yield diagnostic ([`658aeda`](https://github.com/mcbeet/mecha/commit/658aeda383076431dbb72035b97ee3697e7ea5f8))