2023/05/20 m7r2

Bugfix for previous version which had broken third person shallow pole posing.

Description for previous, now-removed release:
Changes:

• Abstracted common characteristics from model classes to umbrella model files
• Rationalized inheritance pathways among model files
• Some posing adjustments to various models

Additions

• Double-width pole model with dimensions 4x those of standard items
• Double-width (relative to default) bow model
• Eight new items, including two contributions.