Two base classes have an unnamed group that clashes in intent with a subclass field (and vice versa)

[PeterC-DLS]

Here's two instances that occurred in new base classes (@lukaspie and @mkuehbach):

1. NXcomponent contains NXfabrication which clashes with fabrication in subclass NXfresnel_zone_plate
2. NXapm_ranging (and also its NXprocess subgroups) and NXapm_reconstruction contain unnamed NXprogram groups but NXprocess has a program

Strictly, this is not a name collision though it can cause issues with autogenerated code and validators so it seems that perhaps

1. NXfresnel_zone_plate could name its fabrication field to something more descriptive
2. NXprocess could contain an NXprogram group or, conversely, NXapm_ranging and NXapm_reconstruction could specify named NXprogram groups

[mkuehbach]

For 1, I recommend to go with fabrication_method
For 2, I recommend to add an NXprogram group, NXprocess should have already an NXparameters group as well

Both would need votes though?

[PeterC-DLS]

Yes, they could be probably breaking changes plus we need to be careful with deprecating former use too.