util: move declarations out of qemu-common.h

Move declarations out of qemu-common.h for functions declared in
utils/ files: e.g. include/qemu/path.h for utils/path.c.
Move inline functions out of qemu-common.h and into new files (e.g.
include/qemu/bcd.h)

Signed-off-by: Veronia Bahaa <veroniabahaa@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/qemu-char.c b/qemu-char.c
index f90e4c1..97aaaae 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -23,6 +23,7 @@
  */
 #include "qemu/osdep.h"
 #include "qemu-common.h"
+#include "qemu/cutils.h"
 #include "monitor/monitor.h"
 #include "sysemu/sysemu.h"
 #include "sysemu/block-backend.h"