Generate Vulkan framework from Vulkan registry

Instead of using the manually created vulkan.api file for generating the
Vulkan framework, we generate it directly from the vulkan registry
(vk.xml)

Bug: 134711355
Test: Build and flash, dEQP tests
Change-Id: I7e85cd4b64d13b8ed2c54678090f405171854a40
diff --git a/vulkan/scripts/code_generator.py b/vulkan/scripts/code_generator.py
new file mode 100644
index 0000000..91c0d30
--- /dev/null
+++ b/vulkan/scripts/code_generator.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python3
+#
+# Copyright 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# This script provides the main function for generating
+# vulkan framework directly from the vulkan registry (vk.xml).
+
+import generator_common as gencom
+import api_generator as apigen
+
+if __name__ == '__main__':
+  gencom.parseVulkanRegistry()
+  apigen.api_genh()
+  apigen.api_gencpp()