Adds conditional weak table benchmarks

[kamronbatman]

Summary

• Adds conditional weak table vs direct access

| Method                      | N    | Mean         | Error      | StdDev     | Ratio | RatioSD | Rank | Allocated | Alloc Ratio |
|---------------------------- |----- |-------------:|-----------:|-----------:|------:|--------:|-----:|----------:|------------:|
| DirectProperty_Access       | 10   |     4.483 ns |  0.1189 ns |  0.1272 ns |  1.00 |    0.04 |    1 |         - |          NA |
| ConditionalWeakTable_Access | 10   |    42.630 ns |  0.4825 ns |  0.4513 ns |  9.52 |    0.28 |    2 |         - |          NA |
|                             |      |              |            |            |       |         |      |           |             |
| DirectProperty_Access       | 100  |    34.540 ns |  0.3824 ns |  0.3577 ns |  1.00 |    0.01 |    1 |         - |          NA |
| ConditionalWeakTable_Access | 100  |   420.093 ns |  3.5314 ns |  2.9489 ns | 12.16 |    0.15 |    2 |         - |          NA |
|                             |      |              |            |            |       |         |      |           |             |
| DirectProperty_Access       | 1000 |   793.459 ns |  8.3328 ns |  7.3868 ns |  1.00 |    0.01 |    1 |         - |          NA |
| ConditionalWeakTable_Access | 1000 | 5,136.609 ns | 79.7231 ns | 74.5730 ns |  6.47 |    0.11 |    2 |         - |          NA |