this also bumps the proto files in the test directory as a matter of
convenience, so some tests got updated accordingly
Signed-off-by: Brian S. Stephan <bss@incorporeal.org>
prior to this, the concatenate assumed it was concatenating a firmware
with a full *storage section*, e.g. the already-padded 8192 bytes, but
it's equally valuable now that I'm creating configs to have just a
config section + footer, which needs to be padded 8192. now concatenate
supports both
