Merge pull request #12 from tannewt/lint

Update to new build process and turn on lint.

I tested and showed that the default and overrides are correctly passed to  spi.config().  Since I do not have a oscilloscope i cannot say whether the configuration values were acted upon by the busio.SPI, but i did show that the changes to the project were correct.

Author: mrmcwethy

.gitignore

@@ -3,5 +3,7 @@
 *.egg-info/
 dist/
 _build/
-build/
 __pycache__
+.env
+build*
+bundles