1.Support use in ConcatAdapter and ConcatAdapter nested ConcatAdapter

2.Supoort any custom Adapter withought extends XXXSticky

2.Fixed findLastVisiablexxx method

Please call setStickyHeaderProvider：

`

stickyHeadersLinearLayoutManager.setStickyHeaderProvider(new StickyHeaderProvider() {
    @Override
    public boolean isStickyHeader(RecyclerView.Adapter<?> adapter, int position) {
        //use brv example
        return adapter instanceof BindingAdapter && ((BindingAdapter)adapter).getModel(position) instanceof ItemHover && ((ItemHover)((BindingAdapter)adapter).getModel(position)).getItemHover();
    }
});

`

What is ConcatAdapter nested ConcatAdapter?

like this:

`

recyclerView.adapter = ConcatAdapter().apply {
    addAdapter(adapterA)
    addAdapter(ConcatAdapter().apply {
        addAdapter(adapterAA)
        addAdapter(ConcatAdapter().apply {
           addAdapter(adapterAAA)
           addAdapter(adapterBBB)
           addAdapter(adapterCCC)
        })
        addAdapter(adapterBB)
    })
    addAdapter(adapterB)
}

`