Add MineDigger.apk that works offline

sky/BUILD.gn

Index: sky/BUILD.gn
diff --git a/sky/BUILD.gn b/sky/BUILD.gn
index 05c39d444e58a67fbc0be59cacd9e451e133d091..68cd9868b9c1f6c5762def17f90d08e9cfc4392b 100644
--- a/sky/BUILD.gn
+++ b/sky/BUILD.gn
@@ -2,9 +2,6 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-import("//build/config/ui.gni")
-import("//tools/grit/grit_rule.gni")
-
 group("sky") {
   testonly = true
 
@@ -13,6 +10,7 @@ group("sky") {
     "//sky/engine/platform:platform_unittests",
     "//sky/engine/web:sky_unittests",
     "//sky/engine/wtf:unittests",
+    "//sky/sdk/example",
     "//sky/tools/imagediff",
     "//sky/tools/packager($host_toolchain)",
     "//sky/tools/tester",
@@ -33,11 +31,7 @@ group("sky_apk") {
   testonly = true
 
   deps = [
-    "//mojo/dart/mojo_services",
-    "//mojo/dart/mojom",
-    "//mojo/public/dart:mojo",
     "//sky/sdk",
-    "//third_party/dart-pkg",
   ]
 
   if (is_android) {