qapi: Move include/qapi/qmp/ to include/qobject/

The general expectation is that header files should follow the same
file/path naming scheme as the corresponding source file. There are
various historical exceptions to this practice in QEMU, with one of
the most notable being the include/qapi/qmp/ directory. Most of the
headers there correspond to source files in qobject/.

This patch corrects most of that inconsistency by creating
include/qobject/ and moving the headers for qobject/ there.

This also fixes MAINTAINERS for include/qapi/qmp/dispatch.h:
scripts/get_maintainer.pl now reports "QAPI" instead of "No
maintainers found".

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com> #s390x
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20241118151235.2665921-2-armbru@redhat.com>
[Rebased]
diff --git a/qemu-io.c b/qemu-io.c
index fa04695..8f2de83 100644
--- a/qemu-io.c
+++ b/qemu-io.c
@@ -27,8 +27,8 @@
 #include "qemu/readline.h"
 #include "qemu/log.h"
 #include "qemu/sockets.h"
-#include "qapi/qmp/qstring.h"
-#include "qapi/qmp/qdict.h"
+#include "qobject/qstring.h"
+#include "qobject/qdict.h"
 #include "qom/object_interfaces.h"
 #include "system/block-backend.h"
 #include "block/block_int.h"