Returns a list of filled rows and columns. The first value of the list is the number of
rows between the top and bottom row which contain cell values, the second value is the
number of columns between the most left and right column which contain cell values.
Example
The following cells are filled in a table: Figure 1.
The variable $filledSizeList will be {5
4}.
set t [hw::GetT]
set activetableHandle [hwi GetActiveClientHandle ch$t]
set filledSizeList [$activetableHandle GetFilledTableSize]
