insertOdgAsPdf: Inserts an odg graphic in pdf format into a rmarkdown text
In charlotte-ngs/rmddochelper:

This function is a wrapper to the more generic function includeOdgGraphic which allows to include graphics into rmarkdown source files.

1 2	insertOdgAsPdf(psOdgFileStem, psOdgDir = "odg", psFigOutDir = ".", pbMustGenerate = FALSE, pnPaperWidthScale = NULL)

`psOdgFileStem`	stem of odg figure file
`psOdgDir`	directory where odg figure file is stored
`psFigOutDir`	directory where output should be placed
`pbMustGenerate`	flag to indicate whether pdf-graphics must be regenerated
`pnPaperWidthScale`	scale factor for produced graphic