sjn added R plotting packages

RUN /usr/bin/Rscript --no-save --no-restore -e 'install.packages("gdata",dependencies=TRUE ,repos="http://cran.r-project.org")'
RUN /usr/bin/Rscript --no-save --no-restore -e 'install.packages("gplots",dependencies=TRUE ,repos="http://cran.r-project.org")'
RUN /usr/bin/Rscript --no-save --no-restore -e 'install.packages("ggplot2",dependencies=TRUE ,repos="http://cran.r-project.org")'
RUN /usr/bin/Rscript --no-save --no-restore -e 'install.packages("RColorBrewer",dependencies=TRUE ,repos="http://cran.r-project.org")'