feat(plugin-market-generator): record the source repository and parse options with commander

Copy each plugin's manifest repository as its web page and package
directory, converting shorthands and Git URLs with hosted-git-info. Parse
options and generate help with commander.

THIRD_PARTY_NOTICES.md

@@ -92,6 +92,7 @@ External packages installed for runtime use or distributed inside the prebuilt b
 | [`fast-xml-parser`](https://github.com/NaturalIntelligence/fast-xml-parser) | MIT |
 | [`fflate`](https://github.com/101arrowz/fflate) | MIT |
 | [`got`](https://github.com/sindresorhus/got) | MIT |
+| [`hosted-git-info`](https://github.com/npm/hosted-git-info) | ISC |
 | [`immer`](https://github.com/immerjs/immer) | MIT |
 | [`ipaddr.js`](https://github.com/whitequark/ipaddr.js) | MIT |
 | [`js-yaml`](https://github.com/nodeca/js-yaml) | MIT |
@@ -204,6 +205,7 @@ External packages **directly declared** for development, tests, types, or toolin
 | [`@types/babel__code-frame`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |
 | [`@types/big.js`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |
 | [`@types/compression`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |
+| [`@types/hosted-git-info`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |
 | [`@types/js-yaml`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |
 | [`@types/jsdom`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |
 | [`@types/mdast`](https://github.com/DefinitelyTyped/DefinitelyTyped) | MIT |