add dependencies to make install

Makefile

@@ -13,6 +13,10 @@ test: all
 
 install: all
 	pip install .
+	conda install --yes r-devtools r-svglite r-gt rpy2
+	Rscript -e 'install.packages("S7", repos="https://cloud.r-project.org")'
+	# TODO: don't just install HEAD
+	Rscript -e 'devtools::install_github("jeffkimbrel/qSIP2")'
 
 dev: all
 	pip install -e .