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

No change was needed.
diff --git a/src/filters.c b/src/filters.c
index 31f9f10..592b303 100644
--- a/src/filters.c
+++ b/src/filters.c
@@ -21,7 +21,7 @@
 #include <types/filters.h>
 #include <types/http_ana.h>
 
-#include <proto/compression.h>
+#include <haproxy/compression.h>
 #include <proto/filters.h>
 #include <proto/flt_http_comp.h>
 #include <proto/http_htx.h>