REORG: include: move dict.h to hparoxy/dict{,-t}.h

This was entirely free-standing. haproxy/api-t.h was added for size_t.
diff --git a/include/types/stick_table.h b/include/types/stick_table.h
index ccd1dcb..e345048 100644
--- a/include/types/stick_table.h
+++ b/include/types/stick_table.h
@@ -29,8 +29,8 @@
 #include <import/ebtree.h>
 #include <import/ebmbtree.h>
 #include <import/eb32tree.h>
+#include <haproxy/dict-t.h>
 #include <haproxy/pool-t.h>
-#include <types/dict.h>
 #include <haproxy/freq_ctr-t.h>
 #include <types/peers.h>
 #include <types/sample.h>