Moved BindingGenerator from gen html project. It makes more sense here.

Sources/BindingGenerator/Internal/Url+Expect.swift

@@ -0,0 +1,19 @@
+//
+//  Url+Expect.swift
+//  HRW
+//
+//  Created by Isaac Paul on 7/5/25.
+//  Non-commercial license, see LICENSE.MD in the project root for details
+//
+
+import Foundation
+
+extension URL {
+    init(expect: String) throws {
+        if let result2 = URL(string: expect) {
+            self = result2
+            return
+        }
+        throw AppError("Could not convert to url: \(expect)")
+    }
+}