REORG: include: move filters.h to haproxy/filters{,-t}.h

Just a minor change, moved the macro definitions upwards. A few caller
files were updated since they didn't need to include it.
diff --git a/src/cache.c b/src/cache.c
index 36c54a8..17d015a 100644
--- a/src/cache.c
+++ b/src/cache.c
@@ -14,6 +14,7 @@
 #include <haproxy/api.h>
 #include <haproxy/channel.h>
 #include <haproxy/cli.h>
+#include <haproxy/filters.h>
 #include <haproxy/http_ana.h>
 #include <haproxy/http_htx.h>
 #include <haproxy/http_rules.h>
@@ -22,11 +23,9 @@
 #include <import/eb32tree.h>
 #include <import/sha1.h>
 
-#include <types/filters.h>
 #include <types/proxy.h>
 
 #include <proto/proxy.h>
-#include <proto/filters.h>
 #include <proto/log.h>
 #include <proto/stream.h>