Update mxj dependency to v2.7.0

vendor/github.com/clbanning/mxj/v2/set.go

@@ -0,0 +1,26 @@
+package mxj
+
+import (
+	"strings"
+)
+
+// Sets the value for the path
+func (mv Map) SetValueForPath(value interface{}, path string) error {
+	pathAry := strings.Split(path, ".")
+	parentPathAry := pathAry[0 : len(pathAry)-1]
+	parentPath := strings.Join(parentPathAry, ".")
+
+	val, err := mv.ValueForPath(parentPath)
+	if err != nil {
+		return err
+	}
+	if val == nil {
+		return nil // we just ignore the request if there's no val
+	}
+
+	key := pathAry[len(pathAry)-1]
+	cVal := val.(map[string]interface{})
+	cVal[key] = value
+
+	return nil
+}