SQL: `CREATE TYPE` does not automatically create `BUCKET`s

[gramian]

ArcadeDB Version: v23.1.2 (build 9dbe3ce/1675373316135/main)

JDK Version: openjdk 11.0.18 2023-01-17

OS: MacOs 12.6

Expected behavior

Non existing buckets are created, see https://docs.arcadedb.com/#SQL-Create-Type

Actual behavior

Internal error Bucket with name 'b1' was not found

Details

Error on command execution (PostCommandHandler)
com.arcadedb.exception.SchemaException: Bucket with name 'b1' was not found
	at com.arcadedb.schema.EmbeddedSchema.getBucketByName(EmbeddedSchema.java:261)
	at com.arcadedb.query.sql.parser.CreateDocumentTypeStatement.createType(CreateDocumentTypeStatement.java:52)
	at com.arcadedb.query.sql.parser.CreateTypeAbstractStatement.executeDDL(CreateTypeAbstractStatement.java:84)
	at com.arcadedb.query.sql.executor.DDLExecutionPlan.executeInternal(DDLExecutionPlan.java:60)
	at com.arcadedb.query.sql.parser.DDLStatement.execute(DDLStatement.java:60)
	at com.arcadedb.query.sql.parser.Statement.execute(Statement.java:85)
	at com.arcadedb.query.sql.parser.Statement.execute(Statement.java:69)
	at com.arcadedb.query.sql.SQLQueryEngine.command(SQLQueryEngine.java:106)
	at com.arcadedb.database.EmbeddedDatabase.command(EmbeddedDatabase.java:1250)
	at com.arcadedb.server.ServerDatabase.command(ServerDatabase.java:416)
	at com.arcadedb.server.http.handler.PostCommandHandler.executeCommand(PostCommandHandler.java:127)
	at com.arcadedb.server.http.handler.PostCommandHandler.execute(PostCommandHandler.java:88)
	at com.arcadedb.server.http.handler.DatabaseAbstractHandler.execute(DatabaseAbstractHandler.java:91)
	at com.arcadedb.server.http.handler.AbstractHandler.handleRequest(AbstractHandler.java:128)
	at io.undertow.server.Connectors.executeRootHandler(Connectors.java:393)
	at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:859)
	at org.jboss.threads.ContextHandler$1.runWith(ContextHandler.java:18)
	at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2513)
	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1538)
	at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1282)
	at java.base/java.lang.Thread.run(Thread.java:829)

Steps to reproduce

CREATE DOCUMENT TYPE doc BUCKET b1, b2

[lvca]

From OrientDB, this syntax is to assign buckets (clusters in OrientDB) to the type, but I can see why creating the buckets automatically is a good idea. Assigned for the march version!

[gramian]

Refactor of #926 in ce28509 . Works!