Read E2E path from MSC file
For the E2E view we need to read the sequence of messages between instances.
See the MSC image in the WP7 description here: https://docs.google.com/document/d/1VP3ezyjjwNOA0kFHhU5WmqtAcYI6Srp0IdKbipCyZQw/edit
Here, we will get something like this:
- [message] > [instance]
- Start_Transaction > User_Interface
- Open_File > File_Manager
- Access_Database > Database_Manager
This also means we need additional connections inside the instances between each connection. For example, in User_Interface we need a connection from Start_Transaction to Open_File.