Add API's for managing bucket quota (#9379)

This PR allows setting a "hard" or "fifo" quota
restriction at the bucket level. Buckets that
have reached the FIFO quota configured, will
automatically be cleaned up in FIFO manner until
bucket usage drops to configured quota.
If a bucket is configured with a "hard" quota
ceiling, all further writes are disallowed.

cmd/peer-rest-common.go

@@ -63,6 +63,8 @@ const (
 	peerRESTMethodBucketEncryptionRemove       = "/removebucketencryption"
 	peerRESTMethodPutBucketObjectLockConfig    = "/putbucketobjectlockconfig"
 	peerRESTMethodBucketObjectLockConfigRemove = "/removebucketobjectlockconfig"
+	peerRESTMethodPutBucketQuotaConfig         = "/putbucketquotaconfig"
+	peerRESTMethodBucketQuotaConfigRemove      = "/removebucketquotaconfig"
 )
 
 const (