Add a-ball handwired trackball based on ADSN9800 (#9015)

* Initial commit of kball

* Pretty much working

* Rename to aball

* Cleanup

* Fix typo and make instructions

* Refactor to use qmk spi

* Suggestions from ZVECR

* Update keyboards/handwired/aball/adns9800_srom_A6.h

* Update keyboards/handwired/aball/adns.c

* Update keyboards/handwired/aball/adns.c

* Update keyboards/handwired/aball/adns.c

* Added copyright and source attribution

* Update keyboards/handwired/aball/rules.mk

Include as quantum lib to help avoid timing issues with LTO

* Only send report on change, adj sensitivity, fix src include

* Fix issue causing constant reports and bad clamping

* Streamline conversion to int, add required wait before burst read

* Changes to track develop

* Update rules with new feature descriptors, add info.json

* Add stub layout

* Rework / cleanup key matrix.  Add missing CS pin define for new ADNS driver

* Add stub keymap to enable compile

keyboards/handwired/aball/info.json

@@ -0,0 +1,12 @@
+{
+    "keyboard_name": "aball",
+    "url": "https://github.com/brickbots/aball/",
+    "maintainer": "@brickbots",
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"x":0, "y":0}
+            ]
+        }
+    }
+}