Rename IExperiment, IExperimenData, IExperimentRunView and RunDataModel.

RunDataModel -> FrameDataModel
IExperiment -> IExperimentRun
IExperimentRunView -> IExperimentFrameView
IExperimentData -> IExperimentRunData
Add an add experiment run button.
Simplify IExperimentRun interface.
Use new Experiment framework in the experiment activity.

Untested.