test: txtar testing to compare gas used between simulate only and skip

gno.land/cmd/gnoland/testdata/simulate_gas.txtar

@@ -0,0 +1,28 @@
+# load the package
+loadpkg gno.land/r/simulate $WORK/simulate
+
+# start a new node
+gnoland start
+
+# simulate only
+gnokey maketx call -pkgpath gno.land/r/simulate -func Hello -gas-fee 1000000ugnot -gas-wanted 2000000 -broadcast -chainid=tendermint_test -simulate only test1
+stdout 'GAS USED:   50299'
+
+# simulate skip
+gnokey maketx call -pkgpath gno.land/r/simulate -func Hello -gas-fee 1000000ugnot -gas-wanted 2000000 -broadcast -chainid=tendermint_test -simulate skip test1
+stdout 'GAS USED:   50299' # same as simulate only
+
+
+-- package/package.gno --
+package call_package
+
+func Render() string {
+ 	return "notok"
+}
+
+-- simulate/simulate.gno --
+package simulate
+
+func Hello() string {
+ 	return "Hello"
+}