Adds uid to `PresentTag` #36

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10 warnings

Nullability of type of parameter 'other' doesn't match overridden member (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Non-nullable property 'CardUid' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Bitwise-or operator used on a sign-extended operand; consider casting to a smaller unsigned type first

Non-nullable property 'SerialNumber' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Unboxing a possibly null value.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Potential stack overflow. Move the stackalloc out of the loop. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2014)

Potential stack overflow. Move the stackalloc out of the loop. (https://learn.microsoft.com/dotnet/fundamentals/code-analysis/quality-rules/ca2014)