Add EnableGrpcLogs functor

Sources/ElixxirDAppsSDK/EnableGrpcLogs.swift

+import Bindings
+import XCTestDynamicOverlay
+
+public struct EnableGrpcLogs {
+  public var run: (LogWriter) -> Void
+
+  public func callAsFunction(_ writer: LogWriter) {
+    run(writer)
+  }
+}
+
+extension EnableGrpcLogs {
+  public static let live = EnableGrpcLogs { writer in
+    BindingsEnableGrpcLogs(writer.makeBindingsLogWriter())
+  }
+}
+
+extension EnableGrpcLogs {
+  public static let unimplemented = EnableGrpcLogs(
+    run: XCTUnimplemented("\(Self.self)")
+  )
+}