SEBA-829 update cordctl to use go mod;
implement run, install, help

Change-Id: I72716d2e245d5ef0dc0603aad149843723ddff9e
diff --git a/vendor/golang.org/x/net/http2/Makefile b/vendor/golang.org/x/net/http2/Makefile
new file mode 100644
index 0000000..55fd826
--- /dev/null
+++ b/vendor/golang.org/x/net/http2/Makefile
@@ -0,0 +1,3 @@
+curlimage:
+	docker build -t gohttp2/curl .
+