Status Code: Add specific return code for self-test fail (-11)

Fixes https://github.com/hashcat/hashcat/issues/3437

docs/changes.txt

@@ -1,5 +1,11 @@
 * changes v6.2.6 -> v6.2.x
 
+##
+## Technical
+##
+
+- Status Code: Add specific return code for self-test fail (-11)
+
 * changes v6.2.5 -> v6.2.6
 
 ##

docs/status_codes.txt

@@ -1,6 +1,7 @@
 status codes on exit:
 =====================
 
+-11 = self-test failed
 -10 = autotune failure
  -9 = mixed backend errors (combo of -3, -4, -5, -6, -7 errors type)
  -8 = backend error: Invalid module_extra_buffer_size

include/types.h

@@ -1842,6 +1842,7 @@ typedef struct backend_ctx
   bool                kernel_accel_warnings;
   bool                extra_size_warning;
   bool                mixed_warnings;
+  bool                self_test_warnings;
 
   // generic
 

src/hashcat.c

@@ -913,6 +913,8 @@ static int outer_loop (hashcat_ctx_t *hashcat_ctx)
         event_log_warning (hashcat_ctx, "You can use --self-test-disable to override, but do not report related errors.");
         event_log_warning (hashcat_ctx, NULL);
 
+        backend_ctx->self_test_warnings = true;
+
         return -1;
       }
     }
@@ -1825,6 +1827,7 @@ int hashcat_session_execute (hashcat_ctx_t *hashcat_ctx)
     if (backend_ctx->kernel_accel_warnings == true)               rc_final = -7;
     if (backend_ctx->extra_size_warning    == true)               rc_final = -8;
     if (backend_ctx->mixed_warnings        == true)               rc_final = -9;
+    if (backend_ctx->self_test_warnings    == true)               rc_final = -11;
   }
 
   // special case for --stdout