Add a flag to indicate whether to run mixed precision according to resource utilization provided by user.

[lior-dikstein]

Pull Request Description:

Checklist before requesting a review:

• I set the appropriate labels on the pull request.
• I have added/updated the release note draft (if necessary).
• I have updated the documentation to reflect my changes (if necessary).
• All function and files are well documented.
• All function and classes have type hints.
• There is a licenses in all file.
• The function and variable names are informative.
• I have checked for code duplications.
• I have added new unittest (if necessary).

[ofirgo]

Some cosmetic comments.
In addition:

1. Please add a dedicated test for the new feature (define a setup with TPC that would run mixed precision before the new feature, and verify that it didn't run mixed precision). I would replicate this test for each of the available resource utilization types.
2. Please update the release notes draft.
3. Also add a description to the PR with an explanation about the feature (and include it in the commit message when you merge it).

[ofirgo]

missing license