* Move layout options to separate toolbar
* Enable stepping on quantities, remove special history curve stepping for now
* Allow stepping ensembles and cases
* Add step next/prev and add new sub plot
- add copy paste of plots into multi summary plot
- improve data source stepping for multi plot
- improve auto generated plot name, graph name and curve name
Fixes by clang-format
Improve readability
jonjenssen
Magne Sjaastad
Gaute Lindkvist