qapi: rename *qmp-*-visitor* to *qobject-*-visitor*

The QMP visitors have no direct dependency on QMP. It is
valid to use them anywhere that one has a QObject. Rename them
to better reflect their functionality as a generic QObject
to QAPI converter.

This is the first of three parts: rename the files.  The next two
parts will rename C identifiers.  The split is necessary to make git
rename detection work.

Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Split into file and identifier rename, two comments touched up]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
diff --git a/include/qapi/qobject-input-visitor.h b/include/qapi/qobject-input-visitor.h
new file mode 100644
index 0000000..cd7414c
--- /dev/null
+++ b/include/qapi/qobject-input-visitor.h
@@ -0,0 +1,30 @@
+/*
+ * Input Visitor
+ *
+ * Copyright IBM, Corp. 2011
+ *
+ * Authors:
+ *  Anthony Liguori   <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.
+ * See the COPYING.LIB file in the top-level directory.
+ *
+ */
+
+#ifndef QOBJECT_INPUT_VISITOR_H
+#define QOBJECT_INPUT_VISITOR_H
+
+#include "qapi/visitor.h"
+#include "qapi/qmp/qobject.h"
+
+typedef struct QmpInputVisitor QmpInputVisitor;
+
+/*
+ * Return a new input visitor that converts a QObject to a QAPI object.
+ *
+ * Set @strict to reject a parse that doesn't consume all keys of a
+ * dictionary; otherwise excess input is ignored.
+ */
+Visitor *qmp_input_visitor_new(QObject *obj, bool strict);
+
+#endif