0423作業分
Merge branch 'sprint6' of https://github.com/myama2630/r2system into sp60414
プルリクエストテスト
Merge pull request #35 from myama2630/sp60414

Sp60414
Support allocated engine switching
Merge remote-tracking branch 'upstream/sprint6' into sprint6
Merge branch 'feature/add-allocation_switching' into sprint6