include JSON samples in submodule - libeufin - Integration and sandbox testing for FinTech APIs and data formats

commit f727bcd36ede7b896d430cc0d6cb83b521332ebb
parent 85c067cb59043ced9c09b1d241df023b3f81b62d
Author: MS <ms@taler.net>
Date:   Thu, 21 Jan 2021 14:42:33 +0100

include JSON samples in submodule

	libeufin Integration and sandbox testing for FinTech APIs and data formats
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