[Java][Gandiva] Expose Dremio build and tests as new optional container/test

Dremio uses Arrow Java and Gandiva extensively and could provide additional test coverage for the project. We should find a way to expose the downstream build of Dremio as an optional build so major changes can better be evaluated against downstream effects.

@praveenbingo, assigning to you for now but let's figure out who at Dremio can pick this up.

**Reporter**: [Jacques Nadeau](https://issues.apache.org/jira/browse/ARROW-3887) / @jacques-n

_{**Note**: *This issue was originally created as [ARROW-3887](https://issues.apache.org/jira/browse/ARROW-3887). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*}

首先定位 Arrow Java 和 Gandiva 的建置設定，以及現有的選用容器或測試機制。研究如何將 Dremio 的下游建置公開為選用建置，並將完成定義為一條可評估下游影響的選用 Dremio 建置與測試路徑。

由索引模型根據 Issue 內容生成。