Revert "update setup.py, exclude 'test' (#162)" (#164)

This reverts commit 225a920.

Author: basnijholt

setup.py

@@ -49,7 +49,7 @@ def get_version_and_cmdclass(package_path):
         "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
     ],
-    packages=find_packages('test','test.*'),
+    packages=find_packages(),
     keywords="plant sensor bluetooth low-energy ble",
     zip_safe=False,
     install_requires=["btlewrap==0.0.10"],