message: Make test dependencies installable as an extra
diff: @@ -3,6 +3,10 @@ import os
  PKG_VERSION = os.environ.get('PACKAGE_VERSION') or '1.9.0'
  +TEST_DEPS = [
  + 'pytest<3.7', 'pytest-asyncio', 'base58'
  +]
  +
  setup(
  name='python3-indy',
  version=PKG_VERSION,
  @@ -13,5 +17,8 @@ setup(
  author_email='vyacheslav.gudkov@dsr-company.com',
  description='This is the official SDK for Hyperledger Indy (https://www.hyperledger.org/projects), which provides a distributed-ledger-based foundation for self-sovereign identity (https://sovrin.org). The major artifact of the SDK is a c-callable library.',
  install_requires=['base58'],
  - tests_require=['pytest<3.7', 'pytest-asyncio', 'base58']
  + tests_require=TEST_DEPS,
  + extras_require={
  + 'test': TEST_DEPS
  + }
  )
  