python-opencensus-ext-threading-0.1.2-bp152.1.8

- Do not provide generic ext folder init content

- Initial build
  + Version 0.1.2

- Replace %patchN with %patch -P N: %patchN is deprecated.

- Switch package to modern Python Stack on SLE-15
  + Add %{?sle15_python_module_pythons}
  + Drop %{?!python_module:%define python_module() python-%{**} python3-%{**}}
  + Drop build support for Python 2.x

- Update base archive to opencensus-0.7.12 (no code change for
  ext-threading)
- require futures only for python2
- Use pyunittest macro
- Add remove-mock.patch
  gh#census-instrumentation/opencensus-python#1002

- Do not provide generic ext folder init content

- Initial build
  + Version 0.1.2