XXMessengerClient

Breaking changes:

• Rename Environment to NDFEnvironment.
• Update NewOrLoadUd functor parameters.

New features:

• Add XXMessengerClient library.
• Update documentation.

Sources/XXMessengerClient/Messenger/Functors/MessengerCMix.swift

+import XXClient
+import XCTestDynamicOverlay
+
+public struct MessengerCMix {
+  public var run: () -> CMix?
+
+  public func callAsFunction() -> CMix? {
+    run()
+  }
+}
+
+extension MessengerCMix {
+  public static func live(_ env: MessengerEnvironment) -> MessengerCMix {
+    MessengerCMix(run: env.ctx.getCMix)
+  }
+}
+
+extension MessengerCMix {
+  public static let unimplemented = MessengerCMix(
+    run: XCTUnimplemented("\(Self.self)", placeholder: nil)
+  )
+}