Initial support for radare2

[trufae]

This PR makes blutter generate a directory named r2_script which contains (for now) an r2 script that sets a flag for every method, it's also adding some for libs and classes so it makes it easier to navigate into the binary. For now that works for me, but I plan to extend it in the future to expose the whole class hirearchy as well as types, constant pool pointers, and other metadata.

[cryptax]

Worked great on my sample :)

[euzada]

Test it and works well to rename functions. It will be very interesting adding support for constant pool pointers. Thank you @radare

[trufae]

@euzada indeed, the constant pool flaging and xrefs is very important, but i was not planning to conitnue until this gets merged

[euzada]

@worawit would you please consider merging this PR to main as radare2 script is very helpful for us who doesn't have IDA license and works mainly on radare2? Thank you.

[trufae]

🦗