Radial Gauge Taking up Blank Space

**Is your feature request related to a problem? Please describe.**
The radial gauges when using a start angle of 0 and end angle of 180. still use up in the render the entire allotted space.

**Describe the solution you'd like**
I would like for the gauge not to change size yet allow me to use that space that is completely blank. This should mean resizing the render area based
on the the angle of the gauge.

Start by reproducing a radial gauge configured with a start angle of 0 and an end angle of 180, then trace the radial gauge's rendering and layout entry points. Done means the gauge keeps its intended size while the render area no longer reserves the completely blank space outside the configured arc.

Written by the indexing model from the issue text.