Merge branch 'kataos' into 'master'

add Google KataOS

See merge request codechina/mirrors-settings!560

projects/AmbiML/imports.yml

+---
+group:
+  name: 'AmbiML'
+  description: ''
+  projects:
+  - name: 'sparrow-kata-full'
+    description: ''
+    mirrorRelease: false
+    topic: ''
+  - name: 'sparrow-manifest'
+    description: ''
+    mirrorRelease: false
+    topic: ''
+  - name: 'sparrow-kernel'
+    description: ''
+    mirrorRelease: false
+    topic: ''
+  
\ No newline at end of file