Well log plot: Align tracks depth axis

[hhgs]

Use same track header size for all tracks to align all data plot with respect to the depth axis (ref. StimPlan model plots)

[magnesj]

Snapshot for multiple horizontal plots

Things to improve

• align start of MD to make sure the depth axis is aligned between tracks
• make it possible to avoid unused plot area between plot (disable title, show only one depth axis, ....)-