Feature: Inventory Control

[Foxtrek64]

This is an issue to track the progress of the Inventory Control System. If you would like to see a feature added, please open a new issue named Inventory Tracking - My Feature where "My Feature" is a short description of what you'd like done. In the issue text, describe the enhancement further and your rationale. We'll add it to this issue.

• Add, remove, view, and edit items (CRUD)
• Create item types with custom properties (e.g. shirt type with size property)
• Default item type (cannot be deleted) with only name field
• Image by item type
  • Item image override
• Issue and return tasks
  • Show user who has item out