DaoGenerator: loadDeep argument's type should be the same as entity's key

[skrzyneckik]

I would love to test it this bugfix, but greendao gradle plugin source code isn't available at the moment.

@greenrobot @greenrobot-team is the any other option to test it?

[greenrobot-team]

I think the restriction to Long for loadDeep() exists due to the current limitation to `Long´ as the only supported primary key type. Though it may have other side effects I am not aware of. -ut

[skrzyneckik]

@greenrobot-team so I guess another method should be introduces to make it possible to loadDeep(T itemID) when @ID is different then Long