FJLabs Ready100 Configurator Fixes (#14291)

* grid-align keycodes; use short-form keycodes

No logic change.

* info.json: correct layout macro reference

* info.json: correct LAYOUT_64key data

Removes an extra key from the layout data.

* 64_ansi Community Layout support

* rename LAYOUT_64key to LAYOUT_64_ansi (with alias for backwards compatibility)
* add LAYOUTS = 64_ansi to rules.mk

* remove width and height keys from info.json

keyboards/fjlabs/ready100/info.json

@@ -2,10 +2,11 @@
     "keyboard_name": "Ready100",
     "url": "https://www.ready100.com",
     "maintainer": "FJLabs",
-    "width": 15,
-    "height": 5,
+    "layout_aliases": {
+        "LAYOUT_64key": "LAYOUT_64_ansi"
+    },
     "layouts": {
-        "LAYOUT_65_ansi": {
+        "LAYOUT_64_ansi": {
             "layout": [
                 {"x": 0, "y": 0},
                 {"x": 1, "y": 0},
@@ -65,7 +66,6 @@
                 {"x": 12, "y": 3},
                 {"x": 13, "y": 3},
                 {"x": 14, "y": 3},
-                {"x": 15, "y": 3},
 
                 {"x": 0, "y": 4, "w": 1.25},
                 {"x": 1.25, "y": 4, "w": 1.25},