Switch the default compilation stack to the new GOpt-based framework in GIE

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We have recently introduced a new GOpt-based compilation stack, which offers robust support for both Cypher and Gremlin query languages. This advanced stack enhances the query processing capabilities with both rule-based and cost-based optimization strategies, ensuring efficient execution across various graph query scenarios.

We are currently planning to switch the default compilation stack from the older, IRCore-based implementation to the new, GOpt-based framework.