context_plot: Creates dotplot with focus highlighted
In pocdata/pocr: POC Data and Analysis Package

Input context_data needs to have column 1 groups and column 2 data.

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context_plot(context_data, focus = "none", xlab, title = "",
  state_label = "Washington", colors = portal_colors[c(8, 4, 2)],
  title_size = 1.2, font = "Open Sans")

`context_data`	data.frame where first columns is a factor for y-axis and second is numeric for x-axis
`focus`	character corresponding to factor level(s) to highlight
`xlab`	character for x-axis label
`title`	character for plot title
`state_label`	character to match to highlight state
`colors`	colors for the manual color scale
`title_size`	relative size of the title
`font`	character, name of font to use