qapi: Move qapi-schema.json to qapi/, rename generated files

Move qapi-schema.json to qapi/, so it's next to its modules, and all
files get generated to qapi/, not just the ones generated for modules.

Consistently name the generated files qapi-MODULE.EXT:
qmp-commands.[ch] become qapi-commands.[ch], qapi-event.[ch] become
qapi-events.[ch], and qmp-introspect.[ch] become qapi-introspect.[ch].
This gets rid of the temporary hacks in scripts/qapi/commands.py,
scripts/qapi/events.py, and scripts/qapi/common.py.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20180211093607.27351-28-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
[eblake: Fix trailing dot in tpm.c, undo temporary hack for OSX toolchain]
Signed-off-by: Eric Blake <eblake@redhat.com>
diff --git a/monitor.c b/monitor.c
index fc9df62..57957b3 100644
--- a/monitor.c
+++ b/monitor.c
@@ -69,14 +69,14 @@
 #include "exec/exec-all.h"
 #include "qemu/log.h"
 #include "qemu/option.h"
-#include "qmp-commands.h"
 #include "hmp.h"
 #include "qemu/thread.h"
 #include "block/qapi.h"
+#include "qapi/qapi-commands.h"
+#include "qapi/qapi-events.h"
 #include "qapi/error.h"
 #include "qapi/qmp-event.h"
-#include "qapi-event.h"
-#include "qmp-introspect.h"
+#include "qapi/qapi-introspect.h"
 #include "sysemu/qtest.h"
 #include "sysemu/cpus.h"
 #include "qemu/cutils.h"