Feature: CUS-1729 repo setup

[emmaLP]

JIRA ticket link/s

• CUS-1729

Summary of changes

1. Initial outline of the READ for the repo
2. Adding CODEOWNERS, dependabot and pr template config
3. simplifying gitgnore file

Additional Info

This is a public repo so we need to ensure we are keeping things as generic as possible.

Out scope is to leverage this in Auth0 actions for logging and metrics

[alexdunne]

• Does this need to be public?
• What does this library provide over https://www.npmjs.com/package/datadog-metrics. README makes reference to it being a wrapper but doesn't explain why we need a wrapper or the problem this library solves

[emmaLP]

@alexdunne

• Does this need to be public?

We have to publish the npm package as public in order to use it in Auth0 Actions. It made sense to make the repo public too since anyone could use the package once published to npm.

• What does this library provide over https://www.npmjs.com/package/datadog-metrics. README makes reference to it being a wrapper but doesn't explain why we need a wrapper or the problem this library solves

The metrics side will either return the datadog-metrics client or a no-op client to support sampling logic we currently have in auth0 rules. Since actions cannot share config like rules can, the sampling logic will need to it in this package and just return the relevant client. This line here in the README mentions about the sampling logic and what type of client is returned