[Cin] 14 Plugin GUIs improved

[Phyllis Smith]

Today's checkin includes 14 plugins with improved GUIs to add Tumbler Boxes
with current value now visible and ability to type in a specific desired
value.  Modified plugins are:
- alpha  + Reset button was added
- brightness
- huesaturation
- linearBlur
- polar
- radialblur
- rgbshift
- sharpen
- unsharp  + hard to use Dial switched to the more consistent slider bar
- wave
- whirl
- yuv
- yuvshift
- zoomblur

Thanks to the Anonymous Contributor for this useful, more consistent, and
desirable presentation for these plugins.  This was very tedious work.
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