No root types for unresolved individuls GP

[tmushayahama]

From this issue

geneontology/noctua-visual-pathway-editor#103

Upon careful investigation, the main cause of the label not displayed is that there is no root type of unresolved GPs. The issue with VPE is that it has to know if it is a gp or a complex or a molecule. So in the case it will just discard the unknown root. If this issue is solved, it will display the id

cc @balhoff @vanaukenk @thomaspd @kltm

[balhoff]

@tmushayahama do you think Minerva should do something different? Is this primarily a data issue?