Test Resource Conflict Validation

[cwfitzgerald]

#3126 is an example of poorly functioning usage scope resource conflict validation, we should add tests which cover the various cases that issues arise.

Examples:

• Is it invalid to the same resource at the same time in multiple ways.
• Is it valid to bind the same storage buffer multiple times, from different bind groups, at different times.

See the compatible usage lists here: https://gpuweb.github.io/gpuweb/#programming-model-resource-usages