@bem-react/core: Strip internal types from withBemMod

## Info

For production build need strip internal types from declaration:

**current behaviour**

```ts
export declare const withWidthAuto: {
(WrappedComponent: import("react").ComponentType): (props: IButtonWidthAutoProps & K) => import("react").ReactElement import("react").ReactElement | null) | (new (props: any) => import("react").Component)>;
__isSimple: boolean;
__blockName: string;
__mod: string;
__value: string | number | boolean | undefined;
__passToProps: boolean;
};
```

**expected behaviour**

```ts
export declare const withWidthAuto: (WrappedComponent: import("react").ComponentType) => (props: IButtonWidthAutoProps & K) => import("react").ReactElement import("react").ReactElement \| null) \| (new (props: any) => import("react").Component)>;
```