[Keyboard] New Macropad: 1upkeyboards super16 (#5039)

* initial commit

* Do a nice write up for readme

* establish switch matrix and physical layout

* Put in the pins that are used

* QMK configurator support and keymap

* set bootloader to caterina because pro micro boohoo

* add ortho_4x4 support for user spaces

* got the columns reversed lol

keyboards/1upkeyboards/super16/info.json

@@ -0,0 +1,12 @@
+{
+    "keyboard_name": "super16", 
+    "url": "", 
+    "maintainer": "qmk", 
+    "width": 4, 
+    "height": 4, 
+    "layouts": {
+        "LAYOUT_ortho_4x4": {
+            "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":0, "y":1}, {"x":1, "y":1}, {"x":2, "y":1}, {"x":3, "y":1}, {"x":0, "y":2}, {"x":1, "y":2}, {"x":2, "y":2}, {"x":3, "y":2}, {"x":0, "y":3}, {"x":1, "y":3}, {"x":2, "y":3}, {"x":3, "y":3}]
+        }
+    }
+}