Create PowerBI templates around good use cases and save files to repo

[schnuerle]

Once the RDS is complete in Phase 1, we'd like to support more data visualization integrations. If you use Power BI, you can make a pull request to add support for it with examples to this repo so everyone can benefit. Use this issue as a place to discuss and collaborate.

[mjhampton12182]

Here are some instructions on connecting Power BI to your AWS Waze Data:
https://docs.google.com/document/d/1RGMSmYBg7TwT4uV9Q6XAiGFjU3Rf2wFEkAMrUFkDHA4/edit

Here is a first pass template for re-timing analysis. This template is intended to show if there is a change in jams after signal re-timing efforts. The query that pulls the data can be edited to pull a specific time frame and a specific square area to focus your analysis. Instructions on using the tool are in progress. Also, still working on a graph for direction.

Power BI template (download it):
https://drive.google.com/file/d/1uJzDcZ9nnBCQm1DS68Xqzs7YjcPhDSfC/view?usp=sharing

The SQL query used in the above Power BI template with some explanation is posted here:
#43.