kern: implement KHandleTable, other cleanup

libraries/libmesosphere/include/mesosphere/kern_initial_process.hpp

@@ -14,8 +14,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #pragma once
-#include <vapours.hpp>
-#include "kern_panic.hpp"
+#include <mesosphere/kern_common.hpp>
 
 namespace ams::kern {