Update binja_gef.py to the latest Binja API

[hugsy]

From Twitter/0xRaindrop

• https://twitter.com/0xRaindrop/status/1259578752222314496
• https://twitter.com/0xRaindrop/status/1259916001090637825

The GEF/Binja was developed some times ago and should be updated to the latest API.

Some of the errors to fix:

gef➤  bn Jump $pc
True
gef➤  ni
[!] Command 'ida-interact' failed to execute properly, reason: <Fault 1: "<type 'exceptions.AttributeError'>:Gef instance has no attribute 'Sync'">
0x08048b4a in main ()

[hugsy]

Most of the commands should be working on and after 63e4a26