Release of v0.7.1

version 0.7.1

• tpm2: Fix TDES key creation by adding missing un-/marshalling functions
• tpm2: Fix a bug in CheckAuthSession
• compilation fixes for TPM 1.2 & TPM 2 and various architectures and
  gcc versions
• Fix support for NIST curves P{192,224,521} and SM2 P256 and BN P648
  that would not work;
• Runtime filter elliptic curves (that OpenSSL does not support) and do
  not advertise those curves as capabilities
• Removed unnecessary space in MANUFACTURER "IBM " -> "IBM"