Running all of the migrations necessary to initialize a storage node
database takes a significant amount of time during runs.
The package current supports initializing a database from manually coalesced
migration data (i.e. snapshot) which improves the situation somewhat.
This change takes things a bit further by changing the snapshot code to
instead hydrate the database directory from a pre-generated snapshot zip
file.
name old time/op new time/op delta
Run_StorageNodeCount_4/Postgres-16 2.50s ± 0% 0.16s ± 0% ~ (p=1.000 n=1+1)
Change-Id: I213bbba5f9199497fbe8ce889b627e853f8b29a0
