get_components_mut

[hymm]

Objective

• Add a checked version of EntityMut::get_components_mut and EntityWorldMut::get_components_mut that does not allocate

Solution

• Add a iterator over the access type to QueryData. This is then used to iterate over the pairs of access to check if they are compatible or not.

Testing

• Added a unit test

Bench checked vs unchecked (50000 entities)

#components	unchecked	checked	times slower
2	509 us	1123 us	2.2x
5	903 us	2902us	3.2x
10	1700 us	11424 us	6.72x

so at 10 components each call was taking about 0.22us vs 0.03 us

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ToDo

• [x] add release note
• [x] add migration guide
• [x] add macro for more benches
• [x] add bench results to pr description
• [ ] look into if this will help with uncached queries
• [x] see if we can optimize it a bit