Congestion tree validation (#84)

* add common/pkg/tree validation

* update noah go.mod

* cleaning and fixes

* fix builder_test.go

* Fix deferred func

* fix even number of vtxos in congestion tree

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Co-authored-by: altafan <18440657+altafan@users.noreply.github.com>

asp/internal/interface/grpc/handlers/utils.go

@@ -18,7 +18,7 @@ func parseTxs(txs []string) ([]string, error) {
 	}
 	for _, tx := range txs {
 		if _, err := psetv2.NewPsetFromBase64(tx); err != nil {
-			return nil, fmt.Errorf("invalid tx format %s", err)
+			return nil, fmt.Errorf("invalid tx format")
 		}
 	}
 	return txs, nil