Description

Added three constraint helpers - not/and/or Changed the type constraint ( and the 3 'where' methods that use it ) to accept symbol and also array of service identifiers.

Related Issue

#599

Motivation and Context

Symbols could not be used in the constraint

How Has This Been Tested?

TDD, npm run test ( Windows )

Types of changes

• Updated docs / Refactor code / Added a tests case (non-breaking change)
• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.
• I have updated the changelog.