refactor: add v1 export

[sakulstra]

I'd personally have prefered 2 entry points @aave/protocol-js/v1 and @aave/protocol-js/v2, but tsdx doesn't provide a way to provide multiple entry points by default i created a less nice workaround which also seems to work.

What this pr does

1. exports all helpers & utils from index js (missed e.g. raymath at multiple places an inlined it instead in projects - this should help keeping the code cleaner)
2. exports all v2 stuff from the root like it currently is to not be breaking
3. adds a named export for each version. If you want to use v1 stuff you can now import { v1 } from "@aave/protocol-js"; v1.formatReserves();