* Adds `WASM_TARGET_DIRECTORY` env variable to `wasm-builder`

* Create the `wasm-builder-runner`'s in a common workspace

* Make `wasm-builder` trigger less rebuilds

* Version up

* Adds script for building only the WASM files

* Apply suggestions from code review

Co-Authored-By: André Silva <andre.beat@gmail.com>
Co-Authored-By: DemiMarie-parity <48690212+DemiMarie-parity@users.noreply.github.com>