Add abstractions: TALER_merchant_pay_{sign,verify}

Additionally, this change removes ‘struct TALER_PaymentResponsePS’
from the public API.

* src/include/taler_crypto_lib.h
  (TALER_merchant_pay_sign): New func decl.
  (TALER_merchant_pay_verify): New func decl.

* src/include/taler_signatures.h
  (struct TALER_PaymentResponsePS): Delete.

* src/util/merchant_signatures.c
  (struct TALER_PaymentResponsePS): Move here from taler_signatures.h.
  (TALER_merchant_pay_sign): New func.
  (TALER_merchant_pay_verify): New func.

0 files changed, 0 insertions, 0 deletions