Rework userfile yet again

I'm settling on the idea that strings should never be returned from the
userfile system. Instead, indicate which collection you want and pass
objects across.

platform/csv/pool.go

@@ -0,0 +1,13 @@
+package csv
+
+import (
+//"encoding/csv"
+//"github.com/Gleipnir-Technology/nidus-sync/platform/csv"
+//"github.com/Gleipnir-Technology/nidus-sync/userfile"
+//"github.com/rs/zerolog/log"
+)
+
+func ProcessJob(file_id int32) error {
+	//userfile.NewFileReader("csv"
+	return nil
+}