optimize imports sorts them according to PEP-8 (PY-2367)

python/testData/optimizeImports/order.after.py

@@ -0,0 +1,9 @@
+import sys
+import datetime
+
+import foo
+from bar import *
+
+
+sys.path
+datetime.datetime

python/testData/optimizeImports/order.py

@@ -0,0 +1,7 @@
+import foo
+import sys
+from bar import *
+import datetime
+
+sys.path
+datetime.datetime

python/testData/optimizeImports/split.after.py

@@ -0,0 +1,5 @@
+import sys
+import datetime
+
+sys.path
+datetime.time

python/testData/optimizeImports/split.py

@@ -0,0 +1,4 @@
+import sys, datetime
+
+sys.path
+datetime.time