Allow Passwords as arrays of Uint8 and Salts as UTF-8 strings

[j-berman]

First off, thank you for this! Many years later this plugin is still coming in handy :D

Overview

I'm using Scrypt in a separate web-based client library. Prior to running passwords through the algorithm, I convert them to Array Buffers using JavaScript's charCodeAt, rather than the string's UTF-8 encoding.* Unfortunately this means this plugin is incompatible with my existing client library, unless I can pass in passwords as arrays of Uint8, just like salts.

So I implemented it!

While implementing, I also realized both passwords and salts could be implemented in the same way, and salts could therefore also accept UTF-8 strings in case anyone wanted to do that.

A note on Android installation difficulties

I used Android version 6.4.0 to test. I'm having trouble getting the plugin installed on the latest version of Android. I get conflict errors related to the .so files. At one point I got it working by removing all these source file links, but I'm tentative to mess with those considering this is my first experience with Cordova.

*I convert strings using JavaScript's charCodeAt rather than the string's UTF-8 encoding because it saves space -- I use the conversion for large inputs as well, and just reused it for password conversion which in hindsight likely wasn't the best move.

[ggozad]

Hey,
Thanks so much for the kind words and contribution. Unfortunately I've stoped maintenance of the plugin a long time ago, but forgot to update the docs. I will now archive this repo.