Move xplat/sonar/xplat/Sonar* to Flipper*

Summary:
Part of the Sonar -> Flipper rename
Intentionally left externally visible buck target as Sonar for now to minimize diff size.

Reviewed By: passy

Differential Revision: D9871684

fbshipit-source-id: 6926eb62c578a05cd895745c75ed7da3cfe965b5

xplat/Flipper/SonarStep.cpp

@@ -0,0 +1,30 @@
+/*
+ *  Copyright (c) 2018-present, Facebook, Inc.
+ *
+ *  This source code is licensed under the MIT license found in the LICENSE
+ *  file in the root directory of this source tree.
+ *
+ */
+#include "SonarStep.h"
+#include "SonarState.h"
+
+void SonarStep::complete() {
+  isLogged = true;
+  state->success(name);
+}
+
+void SonarStep::fail(std::string message) {
+  isLogged = true;
+  state->failed(name, message);
+}
+
+SonarStep::SonarStep(std::string step, SonarState* s) {
+  state = s;
+  name = step;
+}
+
+SonarStep::~SonarStep() {
+  if (!isLogged) {
+    state->failed(name, "");
+  }
+}