handwired/pilcrow Refactor, Configurator support and readme update (#4602)

* handwired/pilcrow: refactor

- layout macro renamed from KEYMAP to LAYOUT
- keymap now uses #include QMK_KEYBOARD_H
- layers reformatted for readability
- removed unused and deprecated fn_actions and action_get_macro blocks
- keymap config.h
  - updated to use #pragma once
  - removed redundant config.h include

* handwired/pilcrow: Configurator support

* handwired/pilcrow: readme update

Updated readme.md file to use modern template formatting.

keyboards/handwired/pilcrow/info.json

@@ -0,0 +1,53 @@
+{
+  "keyboard_name": "pilcrow",
+  "url": "",
+  "maintainer": "qmk",
+  "width": 10,
+  "height": 4,
+  "layouts": {
+    "LAYOUT": {
+      "layout": [
+        {"label":"Q", "x":0, "y":0},
+        {"label":"W", "x":1, "y":0},
+        {"label":"E", "x":2, "y":0},
+        {"label":"R", "x":3, "y":0},
+        {"label":"T", "x":4, "y":0},
+        {"label":"Y", "x":5, "y":0},
+        {"label":"U", "x":6, "y":0},
+        {"label":"I", "x":7, "y":0},
+        {"label":"O", "x":8, "y":0},
+        {"label":"P", "x":9, "y":0},
+        {"label":"A", "x":0, "y":1},
+        {"label":"S", "x":1, "y":1},
+        {"label":"D", "x":2, "y":1},
+        {"label":"F", "x":3, "y":1},
+        {"label":"G", "x":4, "y":1},
+        {"label":"H", "x":5, "y":1},
+        {"label":"J", "x":6, "y":1},
+        {"label":"K", "x":7, "y":1},
+        {"label":"L", "x":8, "y":1},
+        {"label":";", "x":9, "y":1},
+        {"label":"Z", "x":0, "y":2},
+        {"label":"X", "x":1, "y":2},
+        {"label":"C", "x":2, "y":2},
+        {"label":"V", "x":3, "y":2},
+        {"label":"B", "x":4, "y":2},
+        {"label":"N", "x":5, "y":2},
+        {"label":"M", "x":6, "y":2},
+        {"label":",", "x":7, "y":2},
+        {"label":".", "x":8, "y":2},
+        {"label":"/", "x":9, "y":2},
+        {"label":"Ctrl", "x":0, "y":3},
+        {"label":"Alt", "x":1, "y":3},
+        {"label":"GUI", "x":2, "y":3},
+        {"label":"MO(1)", "x":3, "y":3},
+        {"label":"Space", "x":4, "y":3},
+        {"label":"Shift / Space", "x":5, "y":3},
+        {"label":"MO(2)", "x":6, "y":3},
+        {"label":"MO(3)", "x":7, "y":3},
+        {"label":"Delete", "x":8, "y":3},
+        {"label":"Esc", "x":9, "y":3}
+      ]
+    }
+  }
+}