Find a way to automatically import serialization methods from WebviewCrypto

[Ldoppea]

In #250 I introduced the jsSerializeCrypto.js file

This file is generated by retrieving the https://github.com/webview-crypto/webview-crypto project, modifying src/WebViewWorker.ts to export parse and stringify methods from serializeBinary.js, bulding the project and then copy/pasting the results into our project.

An easier solution should be found.

A first solution would be to fork the project, make the modifications and create a new Cozy NPM package.

Do you think of any better solution?

[acezard]

@Ldoppea do you think this issue is still relevant? (I'm available to talk about it)