Add myself to AUTHORS and add my email addresses to .mailmap

Change-Id: I5922421cfb5ef0929f6375089efcd1dc1224e30a
diff --git a/.mailmap b/.mailmap
index d5ad780..a49875d 100644
--- a/.mailmap
+++ b/.mailmap
@@ -2,3 +2,4 @@
 # <preferred e-mail> <other e-mail 1>
 # <preferred e-mail> <other e-mail 2>
 Jiajun Liu <jiajun@unitedstack.com> <iamljj@gmail.com>
+Jian Wen <jian.wen@canonical.com> <wenjianhn@gmail.com>
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