In this PR I'm introducing a simple custom graphql-yoga plugin to create
a caching mechanism specific to our metadata.
The cache key is made of : workspace id + workspace cache version, with
this the cache is automatically invalidated each time a change is made
on the workspace metadata.
- Implemented dataloader package on metadata graphql server
- Implemented a dataloader for relation metadata module
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Co-authored-by: Jérémy M <jeremy.magrin@gmail.com>