[Keyboard] Add PloopyCo devices (#7935)

* Initial Commit for Ploopyco Trackball

This is a WIP at this point.  Most of it compiles, but the SPI commands are non-functioning as they come from Arduino, so don't exist in LUFA

* Convert SPI commands from arduino to LUFA

But I have no idea if this is actually correct or not

* Update keyboard readme

* Clean up ploopyco trackball

* Update readme

* Update mouse key stuff

* last minutue cleanup

* Add caveat about scroll wheel

* Fixup to code

* Additional fixup

* Add movement multiplier

* Rename folders

* mid changes

* temp

* Got it working!!!!!

* Additional cleanup of code

* Make unused pin calls more compact

* Rotation info

* Add debouncing checks

* Make everything replaceable

* Add info.json

* Include ISP flashing info

* Better handling for user customization

* Reconfigure CPI stuff

* fix issues with debug printing

* Fix tiny scroll issue

* Add and update scroll code from ploopy mouse

* Update licensing

* Add PloopyCo Mouse

* Cleanup and layout stuff

* Move common files to main folder for reuse

* Increase polling rate

* Update image for mouse

* Apply changes from code review

* Add VIA support

keyboards/ploopyco/mouse/info.json

@@ -0,0 +1,21 @@
+{
+    "keyboard_name": "PloopyCo Mouse",
+    "url": "",
+    "maintainer": "drashna",
+    "width": 8,
+    "height": 3,
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"x":1, "y":0, "h":2},
+                {"x":2, "y":0, "h":2},
+                {"x":3, "y":0.25, "h":1.25},
+                {"x":4, "y":0, "h":2},
+                {"x":5, "y":0, "h":2},
+                {"x":0, "y":0},
+                {"x":0, "y":1},
+                {"x":3, "y":1.5}
+            ]
+        }
+    }
+}