demo: Rework sample stage diode
This PR aim to provider simpler shortcut for l2scan
in the demo session.
Previously a file path was part of the shortcut. It is now replaced by a simulated diode.
simu_l2scan(robx,20,85,100, roby,50,110,30, 0.01, fluo_diode2)
For that the PR:
- Rework
SampleStageDiode
to handle few more things - Rework simulated scans to allow to use
SampleStageDiode
- Previous simulated scans params (filename and scan) are still supported, but are converted into a
SampleStageDiode