sccharts.klighd: Added new dataflow dependency view
Introduced two new dependency view options. Both are showing SCG
dependencies in SCCharts.
First options creates an edge between two concurrent regions. If any
number of variables is first written in the source region and than
updated or read in the target region.
Second option creates a hyperedge for every of these signals but
attaches every involved region to the one hyperedge.
Signed-off-by: Nis Wechselberg <firstname.lastname@example.org>