Adds zlib1g-dev Debian package build dependency
Adds zlib1g-dev Debian package build dependency

When building from source in Debian, zlib1g-dev is needed or else
'/usr/bin/ld: cannot find -lz' error will occur.

iovisor/bcc,iovisor/bcc,tuxology/bcc,tuxology/bcc,tuxology/bcc,brendangregg/bcc,brendangregg/bcc,brendangregg/bcc,shodoco/bcc,iovisor/bcc,tuxology/bcc,romain-intel/bcc,mcaleavya/bcc,mcaleavya/bcc,iovisor/bcc,tuxology/bcc,mcaleavya/bcc,brendangregg/bcc,mcaleavya/bcc,shodoco/bcc,shodoco/bcc,romain-intel/bcc,shodoco/bcc,shodoco/bcc,romain-intel/bcc,brendangregg/bcc,romain-intel/bcc,romain-intel/bcc,mcaleavya/bcc,iovisor/bcc