Multi tree support #3386
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Multi tree support #3386
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MattHalpinParity
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This PR enable multi tree storage of paritydb.
It currently depends on paritytech/subtrie#2
cc\ @MattHalpinParity @arkpar
A new option is offered to client: paritydbmulti that should probably be consider experimental (it is not default). For polkadot parachain db it is not used (only impact state storage).
Code is based on https://github.com/paritytech/polkadot-sdk/tree/arkpar/new-trie . I am currently not really happy with the way I did merge the changes from #1462 into it (I kept the WithDatabase version, but I am not sure there is not a better way to run it (basically new code with 'wrap' did not run well with Box change, so after a few attempt I just made the new RwLock of this branch not present under no_std).
Right now I did not move a lot of test to support multitree, neither did I test a lot, so I am opening the branch in draft.