Support nodejs-mobile

[staltz]

• [x] Make it compile for Android armv7 and armv8
• [x] Make it run for Android
• [x] Create a .node loader such as neon-load-or-build => node-bindgen-loader
  • Basically the same but node-bindgen puts the index.node in dist/ not native/
  • Be mindful of the native+web split of this specific repository (probably not all node-bindgen repos will have the same shape)
• [x] Make it compile for iOS
• [x] Make it run on iOS
• [x] Split ssb-validate2-rsjs into 3 npm packages https://github.com/ssb-ngi-pointer/ssb-validate2-rsjs/pull/21
• [ ] In Manyverse: ignore the web (wasm) part when doing noderify
• [ ] Convert the scripts to JS so that non-mobile platforms (including Windows) remain the same
• [ ] CI green
• [ ] pull request to nj-cli maybe

[staltz]

Superseded by #22