Extend MetaData to account for Physical Parameters

[Radonirinaunimi]

Extend the MetaData struct and fix the C++ API examples.

[github-actions]

🚀 Benchmark Results 🚀

Here are the results from the benchmark run.

xfxq2                   time:   [1.1253 µs 1.1279 µs 1.1320 µs]
Found 10 outliers among 100 measurements (10.00%)
  4 (4.00%) high mild
  6 (6.00%) high severe

xfxq2s                  time:   [69.311 µs 69.532 µs 69.781 µs]
Found 24 outliers among 100 measurements (24.00%)
  8 (8.00%) low severe
  3 (3.00%) low mild
  5 (5.00%) high mild
  8 (8.00%) high severe

xfxq2_members           time:   [621.44 ps 621.51 ps 621.61 ps]
Found 11 outliers among 100 measurements (11.00%)
  1 (1.00%) low severe
  2 (2.00%) high mild
  8 (8.00%) high severe

[github-actions]

🚀 Benchmark Results 🚀

Here are the results from the benchmark run.

xfxq2                   time:   [1.1250 µs 1.1260 µs 1.1274 µs]
                        change: [−0.8664% −0.3082% +0.0933%] (p = 0.26 > 0.05)
                        No change in performance detected.
Found 8 outliers among 100 measurements (8.00%)
  3 (3.00%) high mild
  5 (5.00%) high severe

xfxq2s                  time:   [69.427 µs 69.767 µs 70.198 µs]
                        change: [−2.6476% −0.7319% +0.9522%] (p = 0.48 > 0.05)
                        No change in performance detected.
Found 24 outliers among 100 measurements (24.00%)
  12 (12.00%) low severe
  3 (3.00%) low mild
  3 (3.00%) high mild
  6 (6.00%) high severe

xfxq2_members           time:   [622.10 ps 622.92 ps 624.09 ps]
                        change: [−0.0827% +0.1904% +0.4776%] (p = 0.21 > 0.05)
                        No change in performance detected.
Found 14 outliers among 100 measurements (14.00%)
  4 (4.00%) high mild
  10 (10.00%) high severe