include/block: Untangle inclusion loops

We have two inclusion loops:

       block/block.h
    -> block/block-global-state.h
    -> block/block-common.h
    -> block/blockjob.h
    -> block/block.h

       block/block.h
    -> block/block-io.h
    -> block/block-common.h
    -> block/blockjob.h
    -> block/block.h

I believe these go back to Emanuele's reorganization of the block API,
merged a few months ago in commit d7e2fe4aac8.

Fortunately, breaking them is merely a matter of deleting unnecessary
includes from headers, and adding them back in places where they are
now missing.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20221221133551.3967339-2-armbru@redhat.com>
diff --git a/block.c b/block.c
index 9c2ac75..b4a8920 100644
--- a/block.c
+++ b/block.c
@@ -27,6 +27,7 @@
 #include "block/trace.h"
 #include "block/block_int.h"
 #include "block/blockjob.h"
+#include "block/dirty-bitmap.h"
 #include "block/fuse.h"
 #include "block/nbd.h"
 #include "block/qdict.h"