GraphQL Schema Building - Format DB columns names as GQL best practice and map to original name

As references in #609 , need to add ability to format columns names of database if they are not graphQL best practice. Additionally, when formatting, we need to map back to the original column name as to not break resolvers.

先阅读所引用的 issue #609，然后定位负责数据库列名的 GraphQL schema 构建路径和 resolver 路径。定义不符合 GraphQL 的名称应如何格式化，以及如何将每个格式化后的名称映射回其原始列，同时不破坏 resolver。

由索引模型根据 Issue 内容生成。