Design a new feature, JsonSelectBuilder

[samchon]

Design a new class JsonSelectBuilder who can convert ORM Model class to a specified JSON data. When the JsonSelectBuilder converting ORM Model to the JSON data, it automatically performs the app joining (by the AppJoinBuilder - #15). The automatic app joining would find the best app joi plan by itself.

[samchon]

The design would be like below:

export class JsonSelectBuilder<
        Mine extends object, 
        InputT extends JsonSelectBuilder.Input<Mine>,
        Destination = JsonSelectBuilder.Output<Mine, InputT>>
{
    public constructor(mine: Creator<Mine>, input: InputT);
    public constructor
        (
            mine: Creator<Mine>, 
            input: InputT, 
            mapper: JsonSelectBuilder.OutputMapper<Mine, InputT, Destination>
        );

    public getOne(record: Mine): Promise<Destination>;
    public getMany(records: Mine[]): Promise<Destination[]>;
}
export namespace JsonSelectBuilder
{
    export type Input<Mine extends object> = OmitNever<
    {
        // key: list up Mine fields and relationship accessors
        // value: DEFAULT, Closure and hierarchical JsonSelectBuilder
    }>;

    export type Output<Mine extends object, InputT extends Input<Mine>> = OmitNever<
    {
        // key: key of InputT
        // value: JSON data after conversion
    }>;

    export type OutputMapper<Mine extends object, InputT extends Input<Mine>, Destination> 
        = (output: Output<Mine, InputT>, index: number, array: Output<Mine, InputT>[]) => Destination;
}