Added table case benchmarks
Added table case benchmarks

RESULTS:

```
test cases::tablecase::tests::bench_is_table_case                                 ... bench:       5,752 ns/iter (+/- 1,755)
test cases::tablecase::tests::bench_table_case                                    ... bench:       5,677 ns/iter (+/- 3,235)
```

whatisinternet/Inflector