Committing a modification to get lightmaps working on differently-endian systems.

* We were endian-converting the poly results; as far as I can tell, this is not what is intended.
* We *weren't* endian-converting the information we read off of the disk.  This is definitely not what was intended.
* When we wrote out lightmaps, we weren't endian-converting the size of the information we wrote; so even though we could load them correctly, we were writing them incorrectly.

Seems to be working now.  Again, should have no effect on non-Windows users as all we've done is changed where we're applying a null operation on that platform; but it makes us happy.
Committing a modification to get lightmaps working on differently-endian systems.

* We were endian-converting the poly results; as far as I can tell, this is not what is intended.
* We *weren't* endian-converting the information we read off of the disk.  This is definitely not what was intended.
* When we wrote out lightmaps, we weren't endian-converting the size of the information we wrote; so even though we could load them correctly, we were writing them incorrectly.

Seems to be working now.  Again, should have no effect on non-Windows users as all we've done is changed where we're applying a null operation on that platform; but it makes us happy.


git-svn-id: 28d9401aa571d5108e51b194aae6f24ca5964c06@13270 8cc4aa7f-3514-0410-904f-f2cc9021211c

crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS,crystalspace/CS