save snaphots to tmp dir

[pbarker]

Description

Saves snapshots to a temp directory so that they can be mounted in environments where they are too large for the container storage. Currently they cannot be mounted because they are saved in the same directory as the binaries

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• Includes unit tests
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Release Notes

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Snapshots now saved to tmp dir

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[tejal29]

@pbarker unit tests are failing. Let me know if you need help fixing these.

[tejal29]

accidentally merged.