[switch] Support multiple crypto modules

[jacobheun]

As mentioned at libp2p/js-libp2p-switch#278 (comment) we don't currently support multiple crypto modules in Switch, even though multiple modules can be given. While the listener will select the proper crypto module via multistream-select, the dialer only ever uses a single crypto module.

The dialer and listener need to be able to negotiate which crypto they want to use. While libp2p currently only has the libp2p-secio module, once the TLS1.3 module is created (likely some time next year) we will need to support this properly.

Depends on libp2p/js-libp2p-switch#278

[vasco-santos]

Closing this, as we now support multiple crypto modules and libp2p-noise is being used in examples together with libp2p-secio.