Added all required dependencies

vendor/github.com/go-xorm/builder/cond_or.go

@@ -0,0 +1,61 @@
+package builder
+
+import "fmt"
+
+type condOr []Cond
+
+var _ Cond = condOr{}
+
+func Or(conds ...Cond) Cond {
+	var result = make(condOr, 0, len(conds))
+	for _, cond := range conds {
+		if cond == nil || !cond.IsValid() {
+			continue
+		}
+		result = append(result, cond)
+	}
+	return result
+}
+
+func (or condOr) WriteTo(w Writer) error {
+	for i, cond := range or {
+		var needQuote bool
+		switch cond.(type) {
+		case condAnd:
+			needQuote = true
+		case Eq:
+			needQuote = (len(cond.(Eq)) > 1)
+		}
+
+		if needQuote {
+			fmt.Fprint(w, "(")
+		}
+
+		err := cond.WriteTo(w)
+		if err != nil {
+			return err
+		}
+
+		if needQuote {
+			fmt.Fprint(w, ")")
+		}
+
+		if i != len(or)-1 {
+			fmt.Fprint(w, " OR ")
+		}
+	}
+
+	return nil
+}
+
+func (o condOr) And(conds ...Cond) Cond {
+	return And(o, And(conds...))
+}
+
+func (o condOr) Or(conds ...Cond) Cond {
+	return Or(o, Or(conds...))
+}
+
+func (o condOr) IsValid() bool {
+	return len(o) > 0
+}