Vendor helgoboss/helgobox (ReaLearn) as basis for custom UI fork

Stripped upstream git history; starting point for replacing the native
SWELL/Win32 mapping UI with something more suited to bulk editing.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

plugin-reaper-realearn/doc/svg-gen/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "svg-gen",
+  "type": "module",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "@svgdotjs/svg.js": "^3.1.1",
+    "@svgdotjs/svg.topath.js": "^2.0.3",
+    "got": "^12.0.0",
+    "pako": "^2.0.4",
+    "svgdom": "^0.1.10"
+  }
+}