event.py: Add SanityCheck and SanityCheckPassed events

(Bitbake rev: 4d7bf9d813229b78b1cd87d06f7042e7923b7db4)

Signed-off-by: Dongxiao Xu <dongxiao.xu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

bitbake/lib/bb/event.py

@@ -517,3 +517,13 @@ class PackageInfo(Event):
     def __init__(self, pkginfolist):
         Event.__init__(self)
         self._pkginfolist = pkginfolist
+
+class SanityCheck(Event):
+    """
+    Event to issue sanity check
+    """
+
+class SanityCheckPassed(Event):
+    """
+    Event to indicate sanity check is passed
+    """