Add NewCmix functor

Sources/ElixxirDAppsSDK/NewCmix.swift

+import Bindings
+import XCTestDynamicOverlay
+
+public struct NewCmix {
+  public init(run: @escaping (String, String, Data, String?) throws -> Bool) {
+    self.run = run
+  }
+
+  public var run: (String, String, Data, String?) throws -> Bool
+
+  public func callAsFunction(
+    ndfJSON: String,
+    storageDir: String,
+    password: Data,
+    registrationCode: String?
+  ) throws -> Bool {
+    try run(ndfJSON, storageDir, password, registrationCode)
+  }
+}
+
+extension NewCmix {
+  public static let live = NewCmix { ndfJSON, storageDir, password, registrationCode in
+    var error: NSError?
+    let result = BindingsNewCmix(ndfJSON, storageDir, password, registrationCode, &error)
+    if let error = error {
+      throw error
+    }
+    return result
+  }
+}
+
+extension NewCmix {
+  public static let unimplemented = NewCmix(
+    run: XCTUnimplemented("\(Self.self)")
+  )
+}