Moved several legacy patches to their respective patches directories.

net-misc/curl/patches/curl-7.18.1.diff

@@ -0,0 +1,16 @@
+--- curl-7.18.1/lib/select.c	2008-03-08 22:11:11.000000000 +0000
++++ curl-7.18.1.patched/lib/select.c	2008-04-19 15:28:49.000000000 +0000
+@@ -35,9 +35,13 @@
+ #endif
+ 
+ #ifdef __BEOS__
++#ifdef __HAIKU__
++#include <sys/socket.h>
++#else
+ /* BeOS has FD_SET defined in socket.h */
+ #include <socket.h>
+ #endif
++#endif
+ 
+ #ifdef MSDOS
+ #include <dos.h>  /* delay() */