Iterator classes becomes IEnumerable and IAsyncEnumerable aware

[masesdevelopers]

Description

Classes which manages iteration over data now implements IEnumerable<T> and IAsyncEnumerable<T> so it is possible to use the instance within a foreach or async foreach statement. The previous usage mode is still valid.

Related Issue

fix #327

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• 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.