Support config properties specific to key transition
Support config properties specific to key transition

This adds config properties SB_VERIFY_TRANS and SB_PROJECT_INI_TRANS.
If set, these take precedence over their non-_TRANS counterparts for
the transistion 'to' container only (SBKTRAND).

Signed-off-by: Dave Heller <dadf76b92c028da3488e57973c6c8cd3d5ab990c@linux.vnet.ibm.com>

hellerda/sb-signing-utils,hellerda/sb-signing-utils