⚡️ add benchmark for DurationParser from int array vs. span

[Odonno]

Added 2 benchmarks method to parse Duration

• one from a string (ReadOnlySpan<char>), avoiding complex parser
• one from a [long?, int?] array

Result:

• less memory allocation
• way faster (avoiding string parsing)
• best format = [long?, int?] array

| Method     | Param          | Mean         | Error      | StdDev     | Ratio | RatioSD | Gen0   | Allocated | Alloc Ratio |
|----------- |--------------- |-------------:|-----------:|-----------:|------:|--------:|-------:|----------:|------------:|
| Superpower | 0ns            |   481.745 ns |  5.3422 ns |  4.4610 ns |  1.00 |    0.00 | 0.0429 |     720 B |        1.00 |
| Pidgin     | 0ns            |   518.948 ns |  5.8655 ns |  5.4865 ns |  1.08 |    0.02 | 0.0191 |     320 B |        0.44 |
| FromSpan   | 0ns            |    32.940 ns |  0.4281 ns |  0.3795 ns |  0.07 |    0.00 | 0.0114 |     192 B |        0.27 |
| FromArray  | 0ns            |     7.218 ns |  0.1512 ns |  0.1263 ns |  0.01 |    0.00 | 0.0048 |      80 B |        0.11 |
|            |                |              |            |            |       |         |        |           |       |
| Superpower | 5y4w3h115ms4ns | 3,410.964 ns | 29.3004 ns | 25.9740 ns |  1.00 |    0.00 | 0.1831 |    3072 B |        1.00 |
| Pidgin     | 5y4w3h115ms4ns | 2,536.325 ns | 18.6825 ns | 17.4756 ns |  0.74 |    0.01 | 0.0267 |     488 B |        0.16 |
| FromSpan   | 5y4w3h115ms4ns |   128.111 ns |  0.7486 ns |  0.6251 ns |  0.04 |    0.00 | 0.0229 |     384 B |        0.12 |
| FromArray  | 5y4w3h115ms4ns |    69.696 ns |  0.4898 ns |  0.4582 ns |  0.02 |    0.00 | 0.0229 |     384 B |        0.12 |

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.32%. Comparing base (aff390a) to head (a3c5c90).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #93   +/-   ##
=======================================
  Coverage   69.32%   69.32%           
=======================================
  Files         110      110           
  Lines        4482     4482           
  Branches      438      438           
=======================================
  Hits         3107     3107           
  Misses       1155     1155           
  Partials      220      220           

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