Need somewhere to record the ISPyB atlas ID

Author: d-j-hatton

src/murfey/util/db.py

@@ -360,6 +360,7 @@ class DataCollectionGroup(SQLModel, table=True):  # type: ignore
     id: int = Field(primary_key=True, unique=True)
     session_id: int = Field(foreign_key="session.id", primary_key=True)
     tag: str = Field(primary_key=True)
+    atlas_id: Optional[int] = None
     atlas: str = ""
     sample: Optional[int] = None
     session: Optional[Session] = Relationship(back_populates="data_collection_groups")