Keymap: Hacker Dvorak (#4514)

* Hacker Dvorak

Programmer Dvorak based layout for the Ergodox EZ.

* Address drashna comments.

* Fix RGB and drop OSL for MO.

* Add gulp file to automate development.

* Fix gulpfile.

* Caps, num and scroll lock indicators.

* Fix scroll lock.

keyboards/ergodox_ez/keymaps/hacker_dvorak/readme.md

@@ -0,0 +1,62 @@
+# [Ergodox EZ Hacker Dvorak Layout](https://configure.ergodox-ez.com/layouts/Wadz/latest/0)
+
+Inspired by the [*Programmer Dvorak*](https://www.kaufmann.no/roland/dvorak) keyboard layout, cherry picked ideas from other layouts in the [EZ Repository](https://configure.ergodox-ez.com/search?q=dvorak&legacy=true), a character distribution [heatmap vizualizer](https://run.plnkr.co/plunks/5EEO8nJ2wRzYAfT3), my own subjective use cases and lots of trial and error.
+
+## Setup
+
+Configure your OS keyboard layout to US, or the keymap will be incorrect.
+
+## Limitations
+
+I plan to use [QMK](https://docs.qmk.fm) in the future, in order to overcome some limitations of the Ergodox EZ [graphical configurator](https://configure.ergodox-ez.com/layouts/default/latest/0)), however I will defer that, until more progress is made to the new [configurator](https://medium.com/the-ergo/the-configurator-is-out-of-beta-e107aec80cae).
+
+## Layers
+
+1. Dvorak
+  * US Dvorak layout.
+  * All symbols (including shifted symbols).
+  * All modifier are dual keys positioned near the home row.
+2. Querty
+  * Used to overcome the limitation pointed above, when your OS layout is set to Dvorak instead of US, this way you can use 
+    Standard Dvorak (available by default on all the main operating systems) on other normal keybdoards and Hacker Dvorak on 
+    the Ergodox EZ Shine at the same time, without changing back and forth tho OS layout.
+3. Gaming
+  * Still in development.
+  * Left side is mainly "normal" Qwerty.
+  * Right side is mainly for movement, either using the mouse, the arrow keys, the number pad or the `H`, `J`, `K`, `L` as       direction keys.
+4. Arrows
+  * Arrow keys navigation.
+  * All modifier keys.
+  * Common text edititng shortcuts (doesn't work for MacOS).
+5. Mouse
+  * Mouse navigation.
+  * All modifier keys.
+  * Common text edititng shortcuts (doesn't work for MacOS).
+6. Numpad
+  * ATM style numpad.
+  * All modifier keys.
+  * Letters from `A` to `F` for hexadecimal numbers (`B` is also used for binary numeric literals in most programming 
+    languages, ie. `0b11001`).
+  * `X` for hexadecimal numeric literals in most programming languages, ie. `0xbeef`.
+  * `O` for octal numeric literals in most programming languages, ie `0o123`.
+  * `J` for complex numeric literals in Python, ie. `3j`.
+  * `I` and `M` for complex Julia numeric literals, ie. `3im`.
+  * Common symbols for mathematical operations.
+7. Hyper Fn
+  * Useful for custom global shortcuts.
+8. Media Fn
+  * Media keys.
+  * Function keys.
+  * EZ Shine keys.
+9. Meh Fn
+  * Useful for custom application shortcuts.
+10. Meh Fn +
+  * Useful for custom standard shortcuts.
+  
+## To Do
+
+Add images.
+
+***
+
+Please comment below if you have any ideas or suggestions. If you have used this layout or used it as a base, I'd love to hear about your experience!