:lipstick: add glances speedometer widgets

[kt-alt]

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Category: Code style update (variation of cpu/mem Gauge widget)

Overview Added new glances cpu & mem widgets. These are really just restyled versions of the existing glances cpu/mem widgets. No new functional code.

Screenshot (if applicable)

GlCpuSpeedometer GlMemSpeedometer

Code Quality Checklist (Please complete)

• [x ] All changes are backwards compatible
• [x ] All lint checks and tests are passing
• [x ] There are no (new) build warnings or errors N/A below
• [ ] (If a new config option is added) Attribute is outlined in the schema and documented
• [ ] (If a new dependency is added) Package is essential, and has been checked out for security or performance
• [ ] Bumps version, if new feature added

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The fix for this issue has now been released in 2.1.2 ✨

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