add weight capacity to container

[dustymc]

Source

https://github.com/ArctosDB/arctos/issues/5573

Summary

Add weight and capacity to table container.

Add trigger to enforce capacity

User Interface Changes

4 new optional fields in create and edit interfaces

Data Structure Changes

Add to table container

• weight numeric
• weight_units fkey ctweight_units
• weight_capacity numeric
• weight_capacity_units fkey ctweight_units

Triggers:

1. Keep values and units paired
2. Prevent container+contents from exceeding load capacity