ELF files LIEF vs. RetDec

[libka-b]

fileinfo provides lesser info on imported libraries in ~1/20 cases than lief library.

[PeterMatula]

Solved by #468.

Note: We received a list of test sample hashes (cca 23000) and scripts to compare the outputs of LIEF and RetDec (needed dynamic libs and imported functions). Oftentimes LIEF provided more info. After changes in the referenced PR, RetDec is not missing any information compared to LIEF in the tested samples - it is at least as good as LIEF.