chore: split orderings supported into own variable. (#3680)

modules/core/03-connection/types/version.go

@@ -11,14 +11,18 @@ import (
 
 var (
 	// DefaultIBCVersion represents the latest supported version of IBC used
-	// in connection version negotiation. The current version supports only
-	// ORDERED and UNORDERED channels and requires at least one channel type
+	// in connection version negotiation. The current version supports the list
+	// of orderings defined in SupportedOrderings and requires at least one channel type
 	// to be agreed upon.
-	DefaultIBCVersion = NewVersion(DefaultIBCVersionIdentifier, []string{"ORDER_ORDERED", "ORDER_UNORDERED"})
+	DefaultIBCVersion = NewVersion(DefaultIBCVersionIdentifier, SupportedOrderings)
 
 	// DefaultIBCVersionIdentifier is the IBC v1.0.0 protocol version identifier
 	DefaultIBCVersionIdentifier = "1"
 
+	// SupportedOrderings is the list of orderings supported by IBC. The current
+	// version supports only ORDERED and UNORDERED channels.
+	SupportedOrderings = []string{"ORDER_ORDERED", "ORDER_UNORDERED"}
+
 	// AllowNilFeatureSet is a helper map to indicate if a specified version
 	// identifier is allowed to have a nil feature set. Any versions supported,
 	// but not included in the map default to not supporting nil feature sets.