Add more tests for HuffmanDecoder and performance benchmark tests

[fkjellberg]

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I'm investigating if we can replace BinaryTree used by LhStaticHuffmanCompressorInputStream with the new generic HuffmanDecoder. ExplodingInputStream is also using a similar BinaryTree implementation and could possibly use HuffmanDecoder as well but I will investigate that later on.

There are some minor differences between the generic HuffmanDecoder and how huffman trees are stored for LHA and I will create another PR to fix this once this PR has been merged.

This PR just adds more unit tests for the HuffmanDecoder and performance benchmark tests.

[garydgregory]

Hello @fkjellberg
Thank you for the PR. Please see my comments.

[fkjellberg]

@garydgregory I updated the PR to use assertThrows

[garydgregory]

Thank you @fkjellberg , merged 🚀