plot_pathway: plot NCI RAS Pathway with or without annotation(s)
In CBIIT-CGBB/NCIRASPathway:

plot NCI RAS Pathway with or without annotation(s)

1 2	plot_pathway(data=NULL, type="no", col.node="blue", col.neg="blue", col.pos="red", bg.neg="blue", bg.pos="red", col.text="black", ...);

`data`	annotation data (matrix or data.frame), column 1: gene symbols and column 2: values
`type`	type: no or links or nodes
`col.node`	node color
`col.neg`	negtive line color
`col.pos`	positive line color
`bg.neg`	background negtive line color
`bg.pos`	background positive line color
`col.text`	gene color
`...`	plot options