Adding support for Operation Stealth

This project is about adding support for the Delphine's
adventure game Operation Stealth to ScummVM's cinE-engine.

What's to be done during this project:
* Obtain information how to implement Operation Stealth by finishing
  its reverse engineering using Interactive Disassembler.
* Modify ScummVM's cinE-engine to support Operation Stealth according
  to the information obtained using reverse engineering.

How does this benefit ScummVM, its users & developers:
* Delphine's adventure games' support is extended with Operation
  Stealth and thus people can play yet one more of the good old
  adventure games on their computer, PDA and/or phone.