Lake burning

[changliao1025]

HexWatershed already has the stream burning.
In the upcoming development, we will provide the lake-stream burning feature, that allows the burning of both river and lake into the mesh and depression filling. Similar to what was designed, the whole process will be consistent from the beginning to the end.
It will support different types of lakes as well.
But we also need to consider the jigsaw-mpas workflow to include lake cells.