Create browser build for @arkecosystem/crypto

[faustbrian]

The primary issue is the usage of native BigInt that cause issues in browsers like Safari. This should be polyfilled if the native BigInt is not available.

Replacing the native BigInt altogether is not a solution because the performance loss on node.js is too big with some of our new transaction types from AIP11.

https://github.com/ArkEcosystem/mobile-wallet/blob/develop/webpack.config.js#L44-L53

[RoukePouw]

This webpack config did not work for me. I was successful shimming bigint by using

  new webpack.ProvidePlugin({
    BigInt: "big-integer"
  }),

note the use of ProvidePlugin instead of DefinePlugin (and a different shim, using npm i big-integer)

I also solved an issue with f.promisify by shimming util_1 which was used in dist/sleep.js

This way I was succesful in building for Safari as well

[faustbrian]

#3830