Add log scaling property to Meter widget

[rjwills28]

I noticed that the old Meter widget in CS-Studio had the option of using a log scale but that this is missing in the Phoebus Meter widget.

This PR adds the code needed to support log scaling in the meter widget following what is implemented for the RTTank widget. The only real bit of logic needed is in MeterScale.java, otherwise it is pretty much boilerplate.

Checklist

• Testing:

  • The feature has automated tests
  • Tests were run
  • If not, explain how you tested your changes

• Documentation:

  • The feature is documented
  • The documentation is up to date
  • Release notes:
    • Added an entry if the change is breaking or significant
    • Added an entry when adding a new feature

[sonarqubecloud]

Quality Gate passed

Issues
2 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud