Cannot add custom G6 interaction mode

[totogo]

Describe the bug
When passing register to Graphin props, custom G6 mode cannot be initiated as expected.

  const register = {
    behavior: (G6: G6Type): BehaviorRegister[] => [
      {
        mode: 'edit', // Custom mode
        options: {},
        name: 'click-add-node',
        register: (G6: G6Type) => {
          G6.registerBehavior('click-add-node', clickAddNodeBehvavior);
        },
      },
    ],
  };

Additional context
The issue could be solved by allowing additional modes in this piece of code:

Graphin/packages/graphin/src/controller/init.ts

Lines 115 to 117 in 3425139

	modes: {
	default: [...defaultModes, ...options.modes!.default!, ...behaviorsMode.default],
	},

[pomelo-nwu]

mode最早的设计是做事件隔离，做编辑状态和普通状态的切换，g6目前专注做图分析， 图编辑已经慢慢弱化，mode模式在上层graphin的图组件里，可以考虑做个兼容处理。