feat(logger): allow changing tag

[finger563]

Description

• added set_tag(std::string_view) to logger API
• Added mutex to protect tag_ member of logger class
• Updated and rebuilt docs

Motivation and Context

For subclasses whose parent class contains a logger, they had no way to change the logger's tag to indicate the new class name. This API update allows such subclasses to change the tag if they so choose. Of course, logger tags can be changed for other reasons as well, this PR allows those use cases.

How has this been tested?

Building and running the logger example.

Screenshots (if appropriate, e.g. schematic, board, console logs, lab pictures):

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 not work as expected)
• Documentation Update
• Hardware (schematic, board, system design) change
• Software change

Checklist:

• My change requires a change to the documentation.
• I have added / updated the documentation related to this change via either README or WIKI

Software

• I have added tests to cover my changes.
• I have updated the .github/workflows/build.yml file to add my new test to the automated cloud build github action.
• All new and existing tests passed.
• My code follows the code style of this project.