VOL-3978 - update to go 1.16.3

- lint required re-format of "generaged" files
- tidied up go.mod

Change-Id: I8fbab94b679061a5e9ba05f95a33b2bb4ca9edc4
diff --git a/generated/classidmap.go b/generated/classidmap.go
index 3c3bdbe..b074c11 100644
--- a/generated/classidmap.go
+++ b/generated/classidmap.go
@@ -273,4 +273,4 @@
 	return (ClassID(240) <= classID && classID <= ClassID(255)) ||
 		(ClassID(350) <= classID && classID <= ClassID(399)) ||
 		(ClassID(65280) <= classID && classID <= ClassID(65535))
-}
\ No newline at end of file
+}