Add coverage reports.

Author: Natim

alma/version.py

@@ -0,0 +1,3 @@
+import pkg_resources
+
+__version__ = pkg_resources.get_distribution("alma-client").version

tox.ini

@@ -4,7 +4,7 @@ envlist = py37,py38,flake8
 [testenv]
 commands =
     mypy --ignore-missing-imports --scripts-are-modules alma
-    pytest tests # --cov-report term-missing --cov-fail-under 100 --cov alma {posargs}
+    pytest tests --cov-report term-missing --cov alma {posargs} # --cov-fail-under 100
 deps = -rdev-requirements.txt
 install_command = pip install {opts} {packages}