Allows users to override the default 30 minutes for
deploy timeouts in acceptance, production, and build
pipelines

- Moved the params assignment into an exported method for easier
testing of param assignment
- Added test to ensure timeout was read and set for each pipeline

Issue #214 - Added parameters for deploy timeout

Allows users to override the default 30 minutes for
deploy timeouts in acceptance, production, and build
pipelines

Issue #214 - Pull params building out of upsert for testing

Moved the params assignment into an exported method for easier
testing of param assignment.

Issue #214 - Added test for build timeout in mu yaml

Issue #214 - Renamed DeployTimeout to BuildTimeout to reflect use

Accidentally named the Struct properties BuildTimeout when they
only affect DeployTimeout settings. Renamed to avoid confusion
and allow for having a separate deploy timeout in the future