Drag drop molfile expands hydrogens

[lpatiny]

When you drag and drop a molfile that do not contain hydrogens :

cytisine.mol.zip

The hydrogens are expanded by default and this should not be the case.

[jobo322]

the hydrogens appears expanded because we add the implicit hydrogens at the moment to load the molecule.

[lpatiny]

In fact it is obviously me that asked for it:

• https://github.com/cheminfo/nmr-load-save/issues/120

But I don't know why or if it has any advantage. For prediction it would make sense because we should not have reordering of the proton but I don't think we should rely on it.

I reverted the addImplicitHydrogens while keeping the 'toMolfile' that reorder hydrogens if present.

https://github.com/cheminfo/nmr-load-save/commit/1b65b3c7232bb3c80788dbbbf4706b0fff196e3a

[jobo322]

it is done from 0.16.0 version of nmr-load-save