Add support for ingest pipelines

[HJK181]

Started a new branch as without testcontainers changes. Also addressed requested changes from #118
#118 can be closed.

[dadoonet]

I think it's very good and we could merge it soon.
Some few requests:

• Could you use spaces instead of tabs? (Yeah I know...)
• Could you add the following header in the new java files you added?

/*
 * Licensed to David Pilato (the "Author") under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. Author licenses this
 * file to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

[viqtor]

@dadoonet @HJK181 would CommerceExperts#1 help drive this along? or would you like it targeted towards the main repo?

[dadoonet]

I believe that if you send your PR to this repo that'd be easier to merge. 😁

Thanks !

[viqtor]

I believe that if you send your PR to this repo that'd be easier to merge. 😁

Thanks !

sure thing. git-fu not on top today so ended up with #160 wanted to avoid taking credit for @HJK181 works is all

[dadoonet]

Closing in favor of #160. Thank a lot @HJK181 for the great work on this!

[HJK181]

Thank you @viqtor for taking this over, I lost track of it :)