FIX - WMS with WCPS style of a layer with pyramids selects wrong collection name in the rasql FROM clause

[Bang Pham Huu]

For example, this WMS request:

curl 'http://localhost:8080/rasdaman/ows?service=WMS&request=GetMap&version=1.3.0&transparent=TRUE&layers=WorldDEM_DSM&styles=&format=image/png&width=256&height=256&crs=EPSG:4326&bbox=-8.75,-63,-7.9375,-62.4375000011' -o 1_master.png


SELECT ENCODE((  (  EXTEND (  SCALE ( ( ( c0[1:317,0:421] ) ), [0:255, 0:236] ), [0:255, -19:236] ) )  ), "png", "{\"nodata\":[0]}") FROM WorldDEM_DSM_16 AS c0

it should use WorlDEM_DSM_16 pyramid member instead of WorldDEM_DSM base collection.