tools: pmempool utility

- pmempool utility with the following commands:
-- create - creating pool files
-- info - parsing pool files
-- dump - dumping data from pool files
-- check - checking and repairing pool files
- update scripts for creating packages
- bash completion script
- manual pages and README file
I think here you can just return util_checksum(). So:
if (!memcmp(infop->sig, BTT_INFO_SIG, BTTINFO_SIG_LEN)) {
     return ((util_checksum(infop, sizeof (*infop), &infop->checksum, 0))

It returns true or false.