DragonFlyBSD/src f5aa1bccontrib/zlib crc32.h deflate.c, contrib/zlib-1.2 crc32.h deflate.c

Merge branch 'vendor/ZLIB'

Upgrade zlib from 1.2.13 to 1.3.1.
DeltaFile
+9,446-0contrib/zlib/crc32.h
+0-9,446contrib/zlib-1.2/crc32.h
+0-2,217contrib/zlib-1.2/deflate.c
+2,139-0contrib/zlib/deflate.c
+1,938-0contrib/zlib/zlib.h
+0-1,935contrib/zlib-1.2/zlib.h
+13,523-13,59857 files not shown
+24,156-24,63263 files

DragonFlyBSD/src 1e71fa9contrib/zlib LICENSE

vendor/ZLIB: Add back LICENSE

As we did for other vendor sources.  Don't know why it was
deleted/missed before.
DeltaFile
+22-0contrib/zlib/LICENSE
+22-01 files