Add Go 1.16, drop 1.13 (#335)

* Add Go 1.16, drop 1.13

* Add 1.13 back in

Author: johnweldon

.github/workflows/pr.yml

@@ -11,6 +11,7 @@ jobs:
     strategy:
       matrix:
         go: [
+          '1.16',
           '1.15',
           '1.14',
           '1.13',

control.go

@@ -31,11 +31,11 @@ const (
 
 // ControlTypeMap maps controls to text descriptions
 var ControlTypeMap = map[string]string{
-	ControlTypePaging:                "Paging",
-	ControlTypeBeheraPasswordPolicy:  "Password Policy - Behera Draft",
-	ControlTypeManageDsaIT:           "Manage DSA IT",
-	ControlTypeMicrosoftNotification: "Change Notification - Microsoft",
-	ControlTypeMicrosoftShowDeleted:  "Show Deleted Objects - Microsoft",
+	ControlTypePaging:                 "Paging",
+	ControlTypeBeheraPasswordPolicy:   "Password Policy - Behera Draft",
+	ControlTypeManageDsaIT:            "Manage DSA IT",
+	ControlTypeMicrosoftNotification:  "Change Notification - Microsoft",
+	ControlTypeMicrosoftShowDeleted:   "Show Deleted Objects - Microsoft",
 	ControlTypeMicrosoftServerLinkTTL: "Return TTL-DNs for link values with associated expiry times - Microsoft",
 }