Make fresco a stand-alone gradle project (#548)

Summary:
Pull Request resolved: https://github.com/facebook/flipper/pull/548

First project to pull out of the "fat distribution" we currently have.
Still needs setup for Maven and registration in Bintray.

Reviewed By: jknoxville

Differential Revision: D17395660

fbshipit-source-id: 6244495a2e25d705dd930ef87c7e5e1f038eb921

android/plugins/fresco/build.gradle

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) Facebook, Inc. and its affiliates.
+ *
+ * This source code is licensed under the MIT license found in the LICENSE
+ * file in the root directory of this source tree.
+ */
+
+apply plugin: 'com.android.library'
+apply plugin: 'maven'
+
+android {
+    compileSdkVersion rootProject.compileSdkVersion
+    buildToolsVersion rootProject.buildToolsVersion
+
+    defaultConfig {
+        minSdkVersion rootProject.minSdkVersion
+        targetSdkVersion rootProject.targetSdkVersion
+    }
+
+    dependencies {
+        implementation project(':android')
+        implementation deps.fresco
+        implementation deps.frescoFlipper
+        implementation deps.frescoStetho
+        compileOnly deps.jsr305
+    }
+}