* Add category WELL_CONNECTION
* Throw exception if category string is invalid
* Make it possible to step connections
* Add definition of completion vectors
* Use WELL_CONNECTION for CPRL
* Convert "WGPRL__2:MY-WELL1-A5" to "WGPRL:MY-WELL1-A5:2"
Use the syntax for well completions in opm-common
* More tests for different variants of summary texts
* #9424 Show vector name in curve names when history vector is present
* #9426 Curve Legend disappears when curve is unchecked
* Remove duplicate call to visibilityChanged
* Remove unused code
* #8425 Multi Graph : Support grouping on object name
* #8425 Multi Graph : Improve creation of new graphs
* #8425 Multi Graph : Improve default tick mark count
* Handle history and non history as identical headers
* #8425 Multi Graph : Increase space below a graph
- 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