r257149,r257150,r257158,r257159,r257164,r257168,
r257193
- Support checking signature for pkg bootstrap from remote
and for 'pkg add ./pkg.txz'
- Be verbose on where pkg is being bootstrapped from.
- Add support for reading configuration files from /etc/pkg.
For now only /etc/pkg/FreeBSD.conf is supported.
- Add test package signing key fingerprint into /etc/keys/pkg/trusted.
- Disable fingerprint checking by default for now as the official
packages are not yet signed.
Approved by: bapt
Approved by: re (glebius)
