Make database modular
Milestone ID: 41
For the app to be safely customizable, it would be nice to distinguish different types of tables in the database:
- "core tables": are common to all configurations, and remain always compatible with previous versions (eg, we never drop a column...)
- "modules tables": are instance-specific. For example, tables of nematodes, used only in nematode labs.
Even better if we later have the possibility to move a "module table" to the set of "core tables".
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