tdf#121094 Opening xlxs with many rows takes several minutes

Use a more useful expansion strategy when re-sizing the array, we use
this 150% in a lot of other places.

This takes the opening time from more than 4m (I lost patience) to under
5s.

Change-Id: I8511662947d737c26ec49503a75af8d4cf447f67
Reviewed-on: https://gerrit.libreoffice.org/73394
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

sc/source/core/data/compressedarray.cxx

@@ -20,8 +20,6 @@
 #include <compressedarray.hxx>
 #include <global.hxx>
 
-static const size_t nScCompressedArrayDelta = 4;
-
 template< typename A, typename D >
 ScCompressedArray<A,D>::ScCompressedArray( A nMaxAccessP, const D& rValue )
     : nCount(1)
@@ -84,7 +82,7 @@ void ScCompressedArray<A,D>::SetValue( A nStart, A nEnd, const D& rValue )
             size_t nNeeded = nCount + 2;
             if (nLimit < nNeeded)
             {
-                nLimit += nScCompressedArrayDelta;
+                nLimit *= 1.5;
                 if (nLimit < nNeeded)
                     nLimit = nNeeded;
                 std::unique_ptr<DataEntry[]> pNewData(new DataEntry[nLimit]);