1.0.0-alpha.0: Error on `$<num><non_num>` capture replacement names (#258)

* Mostly working capture name validation

* Improve inputs for property tests

* Fix advancing when passing over escaped dollar signs

* Switch to inline snapshot captures

* Cleanup invalid capture error formatting code

1.0.0-pre-alpha.4

Fix copy-paste error (#257)

1.0.0-pre-alpha.2

Use .exe for windows executable (#253)