Add tool to fix lines > 120 chars. (#18293)
### Description
<!-- Describe your changes. -->
Helper to run clang-format on lines that are > 120 chars.
We disable clang-format enforcing 120 chars by default because it's
formatting can negatively impact readability. If a developer has not
manually kept a line within the 120 char limit this tool will fix it. It
will leave all other lines alone to honor the formatting the developer
chose.
### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->
Help developers fix lint errors.
Preferred is to use a vertical ruler/guideline in your editor when
actually writing the code.
