Add extras/scheduler.ml

Sample model of an experiment scheduler model without script
Jedit X Coloring profiles for EM and C++
Test model for DAEStepper
Revert "Test model for DAEStepper"

This reverts commit 1b0c3813728d2c5d3c3f89fdaa39dfed490ddd8b.
Revert "Jedit X Coloring profiles for EM and C++"

This reverts commit a43d16260bcd6c687ed8a969d1bac849710561ca.
Revert "Revert "Jedit X Coloring profiles for EM and C++""

This reverts commit 056fccb016dd208aa263b0e960ba3f207529428a.