Follow the same rules for binary files names when renaming or creating a binary file

[saidelike]

Atm we can use underscores _ when renaming a binary file but we can't use it when creating a new binary file. We shouldn't allow it atm as it is use as a separator for naming the idb such as <project>_<binary>_<snapshot>.idb so the code may just be confuse

[saidelike]

Note that it is possible that we can allow underscores in idb names but haven't checked it yet hence why this issue