Add test files

SignalServiceKit/src/Loki/Protocol/Friend Requests/FriendRequestProtocolTests.swift

@@ -0,0 +1,9 @@
+import PromiseKit
+@testable import SignalServiceKit
+import XCTest
+
+class FriendRequestProtocolTests : XCTestCase {
+
+    // TODO: Add tests
+
+}

SignalServiceKit/src/Loki/Protocol/Multi Device/MultiDeviceProtocolTests.swift

@@ -0,0 +1,9 @@
+import PromiseKit
+@testable import SignalServiceKit
+import XCTest
+
+class MultiDeviceProtocolTests : XCTestCase {
+
+    // TODO: Add tests
+
+}

SignalServiceKit/src/Loki/Protocol/Session Management/SessionManagementProtocolTests.swift

@@ -0,0 +1,9 @@
+import PromiseKit
+@testable import SignalServiceKit
+import XCTest
+
+class SessionManagementProtocolTests : XCTestCase {
+
+    // TODO: Add tests
+
+}