Merge remote-tracking branch 'upstream/branch-0.3.0' into branch-1.2

Former-commit-id: 6d718ac8612928c4554c701305fe53d00640510e

CHANGELOGS.md

+# Changelog
+
+Please mark all change in change log and use the ticket from JIRA.
+
+## [Unreleased]
+
+### Bug
+
+### Improvement
+- MS-4 - Refactor the vecwise_engine code structure
+
+### New Feature
+- MS-3 - Define the SDK C++ interface
+
+### Task
+
+- MS-1 - Add CHANGELOG.md