now using testify/assert

added helper_test

dependencies updated in go.mod file

tests/helper_test.go

@@ -0,0 +1,19 @@
+package voicemeeter_test
+
+import (
+	"os"
+	"testing"
+
+	"github.com/onyx-and-iris/voicemeeter-api-go/voicemeeter"
+)
+
+var (
+	vmRem = voicemeeter.NewRemote("banana")
+)
+
+func TestMain(m *testing.M) {
+	vmRem.Login()
+	code := m.Run()
+	vmRem.Logout()
+	os.Exit(code)
+}