column: fix missing out-of-bounds check in table reordering

column: fix missing out-of-bounds check in table reordering

When the --table-order option is used we allocate memory on
the heap for the actual amount of columns we receive from
the input, and later store the wanted column struct objects,
specified in the --table-order list, in that memory space.

We do this by iterating over the order list and incrementing
the heap pointer with a counter variable. This leads to a
buffer overflow when the amount of input columns is smaller
than the amount of columns specified in the table order list.

To prevent this we iterate over the order list for as long as
the counter is smaller than the number of input columns.

Closes: #4281
Signed-off-by: Christian Goeschel Ndjomouo <cgoesc2@wgu.edu>