olevba+mraptor: Detect VBA stomping

[decalage2]

using pcodedmp and comparing with VBA source code.

adb may be used to generate test samples: https://github.com/haroldogden/adb

Also EvilClippy: https://github.com/outflanknl/EvilClippy

Display the version bytes in the _VBA_PROJECT stream [MS-OVBA 2.3.4.1] to see which Office version is targeted.