Reptile JS

Started out as a new signal-based framework that can run inside many other frameworks (React, Vue, Angular, Svelte, Solid).

Ended up as a workbench for comparing current signals implementations.

Important files:

• packages/reptile-*/src/index.ts - connectors to current signal implementations
• packages/reptile-*/src/index.test.ts - tests for conformance
• packages/reptile-reactive-impl/src/index.ts - a custom signals implementation, meant for React. Meant to be small.