scoreWidget: Server-side function for score element with title, gauge, and...
In IskanderBlue/morseldash: Makes Building Dashboards for Morsel Easier

Server-side function for score element with title, gauge, and difference.

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scoreWidget(input, output, session, score, color_cutoff, title = "Score",
  minRange = 0, maxRange = 100, symbol = "%",
  label = "Score vs. cutoff")

`input`	Required for shiny modules' server functions.
`output`	Required for shiny modules' server functions.
`session`	Required for shiny modules' server functions.
`score`	numeric, score to be displayed
`color_cutoff`	numeric, cutoff between different colours for the gauge.
`title`	string, gauge's title.
`minRange`	numeric, gauge's minimum value.
`maxRange`	numeric, gauge's maximum value.
`symbol`	string, a symbol to pass through to userFractionGauge(); \'\' / empty by default.
`label`	string, title for valueBox