snapcraft: add in some new tools missing from the snapcraft apps list
snapcraft: add in some new tools missing from the snapcraft apps list

Add in syscount, dbstat and dbslower to apps list.

Signed-off-by: Colin Ian King <d100aa70785e45ee8deab668147d941941915c21@canonical.com>

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