ARROW-14577: [C++] Enable fine grained IO for async IPC reader #11616

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westonpace wants to merge 8 commits intoapache:masterfrom

westonpace:feature/ARROW-14577--simplify-ipc-reader-add-cache

Commits on Jan 14, 2022

ARROW-14577: Change the logic in the async IPC reader to first read all metadata and then use that metadata to perform partial reads when reading partial columns.
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ARROW-14577: Getting rid of calls to make_unique that were confusing Windows
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ARROW-14577: Added back in the old style and will use it when reading the entire file. This allows us to prebuffer the entire file which is more efficient
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ARROW-14577: Lint
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ARROW-14577: Missing a header for std::iota
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ARROW-14577: Removed some called-in-one-spot methods. Put in a more robust WaitForDictionaryReadFinished
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ARROW-14577: Added a test for mixed access verifying the just-fixed dictionary issue
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ARROW-14577: Removed fs and compute dependencies from IPC test
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