UniBench datasets with SF 10 and SF 30

A dataset with SF10: https://helsinkifi-my.sharepoint.com/:u:/g/personal/chzhang_ad_helsinki_fi/EVk-TuWP0ItAmHGyC5Rhtu8B7L6GV3omoGxsOATmAKu_7A?e=nkhhqe

A dataset with SF30: https://helsinkifi-my.sharepoint.com/:u:/g/personal/chzhang_ad_helsinki_fi/EawWIMM48pRJvezLzQE3URQBzvsbooymmME-NhoKuoEz1w?e=IAs0uy

UniBench Benchmark

This release contains the UniBench multi-model dataset with SF 1, the data importing scripts for ArangoDB and OrientDB, the UniBench query implementations for ArangoDB, OrientDB, AgensGraph, and Spark (partial implementation).

Note that ArangoDB uses the default System database and the password is empty. OrientDB uses a database named test that you may create beforehand.

Unibench Implementation Release

0.1

Update README.md

ready-made dataset

update readme