refactor: hashicorp tests

examples/plugin/hashicorp.go

@@ -0,0 +1,14 @@
+package main
+
+import "github.com/httprunner/hrp/plugin"
+
+// register functions and build to plugin binary
+func main() {
+	plugin.Register("sum_ints", SumInts)
+	plugin.Register("sum_two_int", SumTwoInt)
+	plugin.Register("sum", Sum)
+	plugin.Register("sum_two_string", SumTwoString)
+	plugin.Register("sum_strings", SumStrings)
+	plugin.Register("concatenate", Concatenate)
+	plugin.Serve()
+}