Add ignore rows feature

[turbomam]

I love the ignore column specification. Is there some way to ignore rows? That would help illustrate content from an upstream provider that is being excluded from the model.

Could the metatype specification be repurposed to allow for ignoring rows? (If it doesn't support that already?)

[cmungall]

great idea!

metatype: this would be awkward for sheets that don't use a metatype. It might be simpler to have a column like hide_row and a value of True means the row is ignored. (unfortunately the heading ignore is taken to mean ignore the column)

what is the priority on this?

[turbomam]

priority: would't fix anything that is truly broken, but it would help my collaborations and I would start using it right away

[jamesamcl]

I ended up patching the code to skip rows that generate errors to get something usable quickly

would like an --continue-on-error option or something