Consider WebUSB as alternative solution for Chrome Apps deprecation

[reillyeon]

An alternative to building native applications (issue #64) as a solution to the Chrome Apps deprecation on Linux, macOS and Windows (issue #29) is to move the Chrome Apps code onto ledgerwallet.com and use the WebUSB API (available in Chrome) to communicate with the hardware wallet.

This path is being investigated by the Trezor hardware wallet (development branch).

Disclosure: I am the author of the WebUSB specification.

[btchip]

We're currently doing the same thing over U2F and have been deploying it since 2016. WebUSB is also an option we'll be looking at in the future.