Support Memory Management Module For Apache HugeGraph

This project addresses the latency and response time variability issues in the hugegraph-server query engine by introducing memory management framework to it. Currently, the engine utilizes off-heap memory in most OLTP algorithms, but lacks the ability to control memory allocation per individual query, leading to potential out-of-memory (OOM) errors. The project aims to design and implement a unified memory management framework to address this limitation. This framework will include features such as lifecycle management of memory objects, memory capacity restrictions, and an allocator interface for efficient memory allocation and release. By implementing this framework, the project is expected to improve the stability and performance of the hugegraph-server, ultimately enhancing its usability and reliability for users.