updated fetch utility and Verify with new features

key fetch utility can now scrape php public key blocks that have Windows line termination.

Verify has a new public function get_and_verify which returns verified signature data after successful validation.

Signed-off-by: Jim Klo <jim.klo@sri.com>
release 0.1.13

Signed-off-by: Jim Klo <jim.klo@sri.com>