Working with packages and allowed IPs.

giredorectl now able to interact with giredored about:

* Setting package data. There is no such thing as "create" or "update",
just set.

* Deleting package data.

* Setting allowed IP addresses. This is the only authorization method
ATM, more may come in future.

domains/server/v1/goimports.go

@@ -0,0 +1,13 @@
+package serverv1
+
+import (
+	// stdlib
+	"net/http"
+
+	// other
+	"github.com/labstack/echo"
+)
+
+func throwGoImports(ec echo.Context) error {
+	return ec.String(http.StatusOK, "All OK here")
+}