Tracking: Standardize environment variables

[mikeee]

Describe the feature/proposal

https://docs.dapr.io/reference/environment/

This document contains a list of environment variables that should be supported with overrides accepted, defaults should also be set for these variables where appropriate.

Three related issues partially addressing this:

• Accept the api token through the DAPR_API_TOKEN environment variable #111
• Move DAPR GRPC port inside client #54
• Implement endpoint env var and TLS support #163

Release Note

RELEASE NOTE: ADD Standardized environment variables

[github-actions]

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