"same as" relationship support

[bunop]

Is your feature request related to a problem? Please describe.
Will be nice support the same as relationship for records which have already a BioSamples record

Describe the solution you'd like
The same as relationship should be modeled into database and supported during the biosample submission. CRBanim record with a BioSamples id should be tracked into the database and modeled with the same as relationship to their orignal biosample record

Describe alternatives you've considered
same as record could be ignored (as now) or inserted as a new duplicated objects

Additional context

• model the same as attribute into database
• implement the same as attribute in biosample generation
• edit Animal/Sample views to show the same as attribute
• change CRBanim data load to handle same as data