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

The file was split into two since it contains a variable declaration.
diff --git a/src/proxy.c b/src/proxy.c
index 45750b7..3f889c2 100644
--- a/src/proxy.c
+++ b/src/proxy.c
@@ -26,7 +26,7 @@
 #include <import/eb32tree.h>
 #include <import/ebistree.h>
 
-#include <types/capture.h>
+#include <haproxy/capture-t.h>
 #include <types/cli.h>
 #include <types/global.h>
 #include <types/obj_type.h>