Add the "Common European Cylinders" as per Henrik

Add the "Common European Cylinders" as per Henrik

This is Henrik's list of common metric sized cylinders, although my
experience differs from this one.  In Cyprus, I was diving double 12L
cylinders, but they were 200 bar, not the 232 bar ones Henrik has on the
list.

Also, I really think we should just have a checkbox for "double" instead
of naming them explicitly like this.  Henrik does have the 12L 200 bar
ones in his singles list.

But as a stop-gap, I'm just taking the values from Henrik's patch, but
converted to the new cleaned-up reference tank model setup.

Based-on-patch-by: Henrik Brautaset Aronsen <subsurface@henrik.synth.no>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>