[Skia] Convert SKPs to a CIPD package

scripts/slave/recipes/skia/swarm_test.expected/Test-iOS-Clang-iPad4-GPU-SGX554-Arm7-Debug.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[SLAVE_BUILD]/skia/tools/buildbot_spec.py",
       "/path/to/tmp/json",
       "Test-iOS-Clang-iPad4-GPU-SGX554-Arm7-Debug"
     ],
     "cwd": "[SLAVE_BUILD]/skia",
@@ skipping 67 matching lines @@
       "SKIA_OUT": "[SLAVE_BUILD]/out",
       "XCODEBUILD": "[SLAVE_BUILD]/xcodebuild"
     },
     "name": "push resources to skia_resources"
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
-      "[SLAVE_BUILD]/tmp/SKP_VERSION",
+      "[SLAVE_BUILD]/skia/infra/bots/assets/skp/VERSION",
       "/path/to/tmp/"
     ],
-    "name": "Get downloaded SKP_VERSION"
+    "name": "Get downloaded SKP VERSION"
   },
   {
     "cmd": [
+      "python",
+      "-u",
+      "\nimport shutil\nimport sys\nshutil.copy(sys.argv[1], sys.argv[2])\n",
+      "42",
+      "[SLAVE_BUILD]/tmp/SKP_VERSION"
+    ],
+    "name": "write SKP_VERSION"
+  },
+  {
+    "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/ios/bin/ios_cat_file",
       "skiabot/skia_tmp_dir/SKP_VERSION"
     ],
     "env": {
       "BUILDTYPE": "Debug",
       "CC": "/usr/bin/clang",
       "CHROME_HEADLESS": "1",
       "CXX": "/usr/bin/clang++",
       "GYP_DEFINES": "skia_arch_type=arm skia_clang_build=1 skia_os=ios skia_warnings_as_errors=0",
       "PYTHONPATH": "[BUILD]/scripts",
@@ skipping 50 matching lines @@
       "GYP_DEFINES": "skia_arch_type=arm skia_clang_build=1 skia_os=ios skia_warnings_as_errors=0",
       "PYTHONPATH": "[BUILD]/scripts",
       "SKIA_OUT": "[SLAVE_BUILD]/out",
       "XCODEBUILD": "[SLAVE_BUILD]/xcodebuild"
     },
     "name": "mkdir skiabot/skia_skp/skps"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/ios/bin/ios_push_if_needed",
-      "[SLAVE_BUILD]/skps",
+      "[SLAVE_BUILD]/skp",
       "skiabot/skia_skp/skps"
     ],
     "env": {
       "BUILDTYPE": "Debug",
       "CC": "/usr/bin/clang",
       "CHROME_HEADLESS": "1",
       "CXX": "/usr/bin/clang++",
       "GYP_DEFINES": "skia_arch_type=arm skia_clang_build=1 skia_os=ios skia_warnings_as_errors=0",
       "PYTHONPATH": "[BUILD]/scripts",
       "SKIA_OUT": "[SLAVE_BUILD]/out",
       "XCODEBUILD": "[SLAVE_BUILD]/xcodebuild"
     },
-    "name": "push skps to skps"
+    "name": "push skp to skps"
   },
   {
     "cmd": [
       "[SLAVE_BUILD]/skia/platform_tools/ios/bin/ios_push_file",
       "[SLAVE_BUILD]/tmp/SKP_VERSION",
       "skiabot/skia_tmp_dir/SKP_VERSION"
     ],
     "env": {
       "BUILDTYPE": "Debug",
       "CC": "/usr/bin/clang",
@@ skipping 408 matching lines @@
       "XCODEBUILD": "[SLAVE_BUILD]/xcodebuild"
     },
     "name": "wait for reboot"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]