[Keyboard] Add the Octopad (#9946)

* Create Alter folder

* Revert "Create Alter folder"

This reverts commit 361103b821dbb22957b66cdedb0d11f996def71c.

* Add octopad folder

* Added a new keyboard, the Octopad

* Edited files based on requested changes

* Moved encoder code in keyboard level

* Updated the readme

* Corrected the rows and columns of encoders on config.h

* Changed the Vendor ID to D812 since the first one was already taken

* Added support for ast1109MLTRQ speakers

* Increased number of layers to 8 on VIA keymap

* Edited files based on comments

* Edited rules.mk as per comment

* Edited readme.md as per comment

keyboards/nightly_boards/octopad/info.json

@@ -0,0 +1,29 @@
+{
+    "keyboard_name": "Octopad",
+    "url": "",
+    "maintainer": "Neil Brian Ramirez",
+    "width": 6.5,
+    "height": 3.25,
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+			{"x":0, "y":0}, 
+			{"x":1, "y":0}, 
+			{"x":2, "y":0}, 
+			{"x":3.5, "y":0}, 
+			{"x":4.5, "y":0}, 
+			{"x":5.5, "y":0}, 
+			
+			{"x":1.25, "y":1.25}, 
+			{"x":2.25, "y":1.25}, 
+			{"x":3.25, "y":1.25}, 
+			{"x":4.25, "y":1.25}, 
+			
+			{"x":1.25, "y":2.25}, 
+			{"x":2.25, "y":2.25}, 
+			{"x":3.25, "y":2.25}, 
+			{"x":4.25, "y":2.25}
+			]
+        }
+    }
+}