[CODEOWNER]Add another person to code owner
# Service team
/sdk/identity/ @chlowell @schaabs
/sdk/eventhub/ @annatisch @yunhaoling @YijunXieMS
-/sdk/storage/ @zezha-msft @annatisch @rakshith91
+/sdk/storage/ @zezha-msft @annatisch @rakshith91 @xiafu-msft
/sdk/applicationinsights/ @alexeldeib
/sdk/batch/ @bgklein @matthchr @xingwu1
/sdk/cognitiveservices/azure-cognitiveservices-vision-customvision/ @areddish
