WARP Processor leaking "empty" binary views

1. Open a new project
2. Add a binary with **no functions** to the project
3. Run the "WARP" -> "Create" -> "From Project" command
4. Hit OK

After finishing notice that `get_memory_usage_info()` returns active binary view objects, this is because the binary was detected with no functions and the processor returned before closing the file (leaking the binary view in the process).
