~taiite/protodump

Update README.md and add a man page
Do not group by files by default
cargo clippy
Add options to show local, global and imported symbols
Introduce ObjectInfo

to group up general information about the object file
Do not show imported symbols
Update dependencies, support the restrict keyword

and drop requirement on nightly
Update README.md
Show meta information about the object file
Filter prototypes with exported elf symbols
Add contributing section to README.md
Fix infinite loop when argument is of type "void"
Group prototypes by file
Fix missing prototypes
Support parameter qualifiers
Add a README and a LICENSE
Initial commit