[massive store] Store entities in temporary table as well * on some entity type is encountered by a slave, create a dedicated table for insertion of entities of this type by this slave, similarly to what is done for relation - this should lower changes of conflicts in master/slaves mode ; * delay drop of constraints and indexes to `finish` method, where copy from temporary tables to regular table is done ; * insertion of metadata is done by scanning temporary tables, which may be way shorter than theier associated regular table ; * drop drop_metadata_constraints with its constraint_dropped friend attribute, there are no more necessary since this is done once in the `finish`. Related to #15538303

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Document: cubicweb-doc

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Title: CubicWeb documentation

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Author: Logilab

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Abstract: Some base documentation for CubicWeb users and developpers

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Section: Apps/Programming

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Format: HTML

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Index: /usr/share/doc/cubicweb-documentation/html/index.html

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Files: /usr/share/doc/cubicweb-documentation/html/*