As requested by Aesaar, raise the per-model debris limit to 48 (previously 32). Also increases the per-frame debris limit to 96 (previously 64)


git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@9749 387891d4-d844-0410-90c0-e4c51a9137d3