Keyboard: Add Big Series 2-, 3-, and 4-key boards (#3669)

* Implement magic 8-ball mode for big series switch

* LED Testing

* Add Ctrl+Alt+Del key mapping

* Add Windows lock (win+L) layout.

* Add Big Series 3-key

* Add Big Series 4-key

* Add Big Series 2-key

* Fix layout mapping for Big Series 3u

* Fix merge-conflict.

* Refactor bigseries boards into a single folder

1 files changed, 15 insertions, 0 deletions

diff --git a/keyboards/bigseries/3key/readme.md b/keyboards/bigseries/3key/readme.md
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+# Big Series Keyboard
+
+![Big Series 3-Key](https://woodkeys.click/wp-content/uploads/2018/04/BigSeries_3u_Case_2018-Apr-03_07-03-31PM-000_CustomizedView20086357020.png)
+
+A PCB for the Big Series Switch by [NovelKeys](https://novelkeys.xyz). Available in 1, 2, 3, and 4 switch versions from [Woodkeys.click](https://woodkeys.click/product-category/big-series/).
+
+Keyboard Maintainer: [Cole Markham](https://github.com/colemarkham) / [Woodkeys.click](https://woodkeys.click)  
+Hardware Supported: Big Series PCBs  
+Hardware Availability:  [Woodkeys.click](https://woodkeys.click), [NovelKeys](https://novelkeys.xyz)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make bigseries/3key:default
+
+See [build environment setup](https://docs.qmk.fm/install-build-tools) then the [make instructions](https://docs.qmk.fm/build-compile-instructions) for more information.