Add IEnumerable<T> overloads for collection writers

[lukaskabrt]

No description provided.

[Copilot]

Pull request overview

This pull request adds IEnumerable overloads for all collection writer methods in PbfLite, providing more flexibility for API consumers who want to pass LINQ queries or other enumerable collections without converting to arrays or spans first.

Changes:

• Added IEnumerable overloads for 9 collection writer methods (WriteUIntCollection, WriteULongCollection, WriteIntCollection, WriteLongCollection, WriteSignedIntCollection, WriteSignedLongCollection, WriteBooleanCollection, WriteSingleCollection, WriteDoubleCollection)
• Updated existing tests to explicitly use AsSpan() to disambiguate which overload is being tested
• Bumped package version from 0.4.0 to 0.5.0

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
src/PbfLite/PbfLite.csproj	Version bump from 0.4.0 to 0.5.0 for new minor feature release
src/PbfLite/PbfBlockWriter.Collections.cs	Added two private helper methods for IEnumerable collections and 9 public IEnumerable overloads for collection writers
src/PbfLite.Tests/PbfBlockWriterTests.Collections.cs	Added test cases for each new IEnumerable overload and updated existing tests to use AsSpan()
src/PbfLite.Tests/PbfBlockReaderStreamReaderRoundTripTests.cs	Updated test to use AsSpan() to call specific overload
src/PbfLite.Tests/CollectionsRoundTripTests.cs	Updated test to use AsSpan() to call specific overload
src/PbfLite.Benchmark/PbfBlockWriterCollectionsBenchmarks.cs	Updated benchmarks to use AsSpan() to ensure they measure specific overload performance

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