add consistency parameter to write_points

[RonRothman]

This PR adds a consistency parameter to InfluxDBClient.write_points.

Motivated by this issue: #643.

[aviau]

Great! I'd merge this if the tests were not broken. Someone has to fix the tests.

[RonRothman]

Thanks @aviau!

Just checking - you mean the preexisting test framework, right? Not [necessarily] the particular tests I added? (Just making sure I didn't unknowingly break something.)

[xginn8]

@RonRothman some of these failures look unrelated to your change. I will try to fix those generally asap.

[RonRothman]

Got it-- thanks.

[aviau]

you mean the preexisting test framework, right?

Yes exactly! Your code looks perfectly fine.

[xginn8]

@RonRothman sorry for the delay, I believe #674 should fix the issue. Once that gets merged, we'll retest this and merge if it looks good. Thanks for contributing!

[xginn8]

@RonRothman if you are able to fix up the failing linting tests, this PR looks ready to merge. Thanks for contributing!

[RonRothman]

@xginn8 Thanks! Done.