ASV: added benchamark tests for DataFrame.to_numpy() and .values
- [x] closes #35023
- [x] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

Adds benchmarks with single dtype and mixed frames of varying sizes.
xref #34999