Add TransmitSingleUse functor

Sources/ElixxirDAppsSDK/Functors/TransmitSingleUse.swift

+import Bindings
+import XCTestDynamicOverlay
+
+public struct TransmitSingleUse {
+  public struct Params: Equatable {
+    public init(
+      e2eId: Int,
+      recipient: Data,
+      tag: String,
+      payload: Data,
+      paramsJSON: Data
+    ) {
+      self.e2eId = e2eId
+      self.recipient = recipient
+      self.tag = tag
+      self.payload = payload
+      self.paramsJSON = paramsJSON
+    }
+
+    public var e2eId: Int
+    public var recipient: Data
+    public var tag: String
+    public var payload: Data
+    public var paramsJSON: Data
+  }
+
+  public var run: (Params, SingleUseResponse) throws -> SingleUseSendReport
+
+  public func callAsFunction(
+    params: Params,
+    callback: SingleUseResponse
+  ) throws -> SingleUseSendReport {
+    try run(params, callback)
+  }
+}
+
+extension TransmitSingleUse {
+  public static let live = TransmitSingleUse { params, callback in
+    var error: NSError?
+    let reportData = BindingsTransmitSingleUse(
+      params.e2eId,
+      params.recipient,
+      params.tag,
+      params.payload,
+      params.paramsJSON,
+      callback.makeBindingsSingleUseResponse(),
+      &error
+    )
+    if let error = error {
+      throw error
+    }
+    guard let reportData = reportData else {
+      fatalError("BindingsTransmitSingleUse returned `nil` without providing error")
+    }
+    return try SingleUseSendReport.decode(reportData)
+  }
+}
+
+extension TransmitSingleUse {
+  public static let unimplemented = TransmitSingleUse(
+    run: XCTUnimplemented("\(Self.self)")
+  )
+}