Rudder

Initial promises and system techniques are more or less the same thing, except that initial promises cannot have parameter.
To make sure they are really the same (and avoid to having to synchronize their source code), we should have the same source for both a use the same process as Rudder uses to transform system techniques into promises.
The plan is :
- create a command line tool than transforms string templates files with the same behaviour as Rudder
- use this tool in packaging to create initial promises from system techniques
- add initial promises code into system techniques