Revert "delete everything" (includes everything non-go-crypto)

This reverts commit 96a3502

types/test_util.go

@@ -0,0 +1,37 @@
+package types
+
+import "time"
+
+func MakeCommit(blockID BlockID, height int64, round int,
+	voteSet *VoteSet,
+	validators []PrivValidator) (*Commit, error) {
+
+	// all sign
+	for i := 0; i < len(validators); i++ {
+
+		vote := &Vote{
+			ValidatorAddress: validators[i].GetAddress(),
+			ValidatorIndex:   i,
+			Height:           height,
+			Round:            round,
+			Type:             VoteTypePrecommit,
+			BlockID:          blockID,
+			Timestamp:        time.Now().UTC(),
+		}
+
+		_, err := signAddVote(validators[i], vote, voteSet)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return voteSet.MakeCommit(), nil
+}
+
+func signAddVote(privVal PrivValidator, vote *Vote, voteSet *VoteSet) (signed bool, err error) {
+	err = privVal.SignVote(voteSet.ChainID(), vote)
+	if err != nil {
+		return false, err
+	}
+	return voteSet.AddVote(vote)
+}