[Keyboard] move That-Canadian 's boards into /maple_computing (#16050)

keyboards/maple_computing/the_ruler/info.json

@@ -0,0 +1,10 @@
+{
+  "keyboard_name": "The Ruler",
+  "url": "",
+  "maintainer": "qmk",
+  "layouts": {
+      "LAYOUT": {
+          "layout": [{"x":0, "y":0}, {"x":1, "y":0}, {"x":2, "y":0}, {"x":3, "y":0}, {"x":4, "y":0}, {"x":5, "y":0, "w":2}]
+      }
+  }
+}