add trade rpc test

plugin/dapp/trade/cmd/Makefile

+all:
+	chmod +x ./build.sh
+	./build.sh $(OUT) $(FLAG)
\ No newline at end of file

plugin/dapp/trade/cmd/build.sh

+#!/usr/bin/env bash
+
+strpwd=$(pwd)
+strcmd=${strpwd##*dapp/}
+strapp=${strcmd%/cmd*}
+OUT_DIR="${1}/$strapp"
+#FLAG=$2
+
+mkdir -p "${OUT_DIR}"
+cp ./build/* "${OUT_DIR}"
+
+OUT_TESTDIR="${1}/dapptest/$strapp"
+mkdir -p "${OUT_TESTDIR}"
+chmod +x ./build/test-rpc.sh
+cp ./build/test-rpc.sh "${OUT_TESTDIR}"