Add RegistryMapper to automate RegEntry management of ephemeral packed objects

Introduce RegistryWrapper to automate the setting of the RegEntry for packed/unpacked objects, and avoid the use of the heap, i.e. reduce the number of memory allocations.

@sesen, @rmatev: FYI

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• 9908250c - add registry wrapper

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• 56328556 - add registry wrapper

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• 78feedb9 - add registry wrapper

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• 78feedb9...3675da97 - 4 commits from branch master
• bab0f08f - add additional print-out if packing checks fail
• 577b74b1 - prefer std integer types with explicit bit counts for packed objects, std::byte for byte buffer
• 6b582f3e - add registry wrapper

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added 1 commit

• 1951f5dc - add registry wrapper

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• 7c06b0c0 - prefer std integer types with explicit bit counts for packed objects, std::byte for byte buffer
• 9f618cc0 - add registry wrapper

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• 43d47d69 - tweak comparison threshold

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marked this merge request as draft

marked this merge request as ready

changed title from WIP: registry wrapper to Add RegistryMapper to automate RegEntry management of ephemeral packed objects

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• f2f5f323 - tweak comparison threshold
• 684abe9d - add registry wrapper

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added 1 commit

• 0fc3270e - add registry wrapper

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added 8 commits

• 0fc3270e...51723ba3 - 6 commits from branch master
• b91f1082 - prefer std integer types with explicit bit counts for packed objects, std::byte for byte buffer
• 30959ef7 - add registry wrapper

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resolved all threads

mentioned in issue #207 (closed)

assigned to @thboettc