Is this a BUG REPORT or FEATURE REQUEST?:

/kind feature

Description:

Propose to migrate volcano-sh/scheduler into volcano-sh/volcano, as

1. Several features need to enhance both repo, e.g. DelayPodCreation
2. When there's fix in volcano-sh/scheduler, it has to be cherry-pick to volcano-sh/volcano; if any missing, there maybe quality issue.
3. We also need to re-submit the scheduler part to kube-batch which means we have to maintain 3 repos :(

After the migration, we will

1. make sure adding notes on the scheduler part is built based on kube-batch to follow the license requirement
2. make sure the scheduler part use the same api with kube-batch
3. any others?