Document configuring a development environment

*I'm submitting a ...*
- [ ] bug report
- [ ] feature request
- [x] support request

## General infomration

### Prerequisites

* [x] Are you running the latest version?

### Description

Documentation for the project could generally be improved, however it would be helpful to describe how a development environment is best configured.

I am working through the project to work this out for myself (limited time so its taking a while), but I believe it would encourage contribution to describe how a development environment may be achieved on the various OS platforms.

## Context (Environment)

### Operating System

* [x] Linux (x86/x64)
* [x] OSX (x86/x64)
* [x] Windows (x86/x64)
* [x] Linux (ARM)
* [x] Android

No documentation file, setup entry point, or test is named in the issue. Start by locating the project's existing contributor or development-environment documentation and identifying the requirements for the listed operating systems. Done means contributors can follow one clear setup guide for the supported platforms.

Written by the indexing model from the issue text.