Add an optional "hideUnit" parameter to formatEntityAttributeValue() (and make it more universal)

[ildar170975]

Breaking change

Proposed change

Currently in some modules, to show an attribute's value BOTH either formatNumber() is used (when no UoM is needed) or formatEntityAttributeValue() (otherwise).

Example - ha-attribute-value:
when used in ha-attribute-row, if non-empty suffix is defined, then formatNumber() is used; otherwise - formatEntityAttributeValue().

This PR adds an optional parameter hideUnit into formatEntityAttributeValue() and thus there is no need to use both functions.

Code for testing:

type: entities entities: - entity: sun.sun type: attribute attribute: elevation - entity: sun.sun type: attribute attribute: elevation suffix: "" - entity: sun.sun type: attribute attribute: elevation suffix: " " - entity: sun.sun type: attribute attribute: elevation suffix: xx 

Presentation is not changed:

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[piitaya]

It's heavily linked to this comment : #28539 (review)