feat(structure): [AOU-1133] searchable multi select tree component for structure

https://issues.unige.ch/browse/AOU-1133

Need Solidify frontend solidify/solidify-frontend!78 (merged)

Warning : Do not merge this branch before release solidify and increment solidify version in package json

Reminder : Procedure to test solidify frontend branch

1. Pull dlcm and solidify branches
2. npm i on solidify (allow to retrieve required lib)
3. npm i on aou (allow to retrieve required lib)
4. npm run build-solidify on aou (allow to override solidify lib from nexus with local build)
5. npm run start on aou to run the app