Reverting test usage of report.error as its not stopping execution.
Reverting test usage of report.error as its not stopping execution.

Using the report.error is working. The return value is not propagating.
Replace nif_utils.NifError to consolidate the implementations is
required anyways so will keep existing solution of using NifError for
now.
nightstrike/blender_nif_plugin,nightstrike/blender_nif_plugin