Define a debugger pragma directive

[sideninja]

We could define a pragma directive for an emulator to detect and use as a stopping request for the debugger. We could implement this in the emulator to detect and only stop on a transaction that contains this pragma directive.

Further more we could introduce a way to set a debugger breakpoint using such a pragma, but that would require also changes in the Cadence codebase and should probably be further defined in a Cadence issue.