Update to 2.0.0b3

SOFTHSM-113: Support for Botan 1.11.15
SOFTHSM-119: softhsm2-util: Support ECDSA key import
SUPPORT-139: Support deriving generic secrets, DES, DES2, DES3, and AES.
Using DH, ECDH or symmetric encryption.

Various Bug Fxes, see https://www.opendnssec.org/2015/04/18/softhsm-2-0-0b3/ for details.

LibreSSL support, see also https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=199008 for details.

PR: 200056
Submitted by: Jaap Akkerhuis <jaap@NLnetLabs.nl> (maintainer)