Maintain a circular buffer of recent commands, add to crashlog.

Add console command to dump command log.
Increase max crashlog size.

src/console_cmds.cpp

@@ -1875,6 +1875,19 @@ DEF_CONSOLE_CMD(ConNewGRFReload)
 	return true;
 }
 
+DEF_CONSOLE_CMD(ConDumpCommandLog)
+{
+	if (argc == 0) {
+		IConsoleHelp("Dump log of recently executed commands.");
+		return true;
+	}
+
+	char buffer[32768];
+	DumpCommandLog(buffer, lastof(buffer));
+	PrintLineByLine(buffer);
+	return true;
+}
+
 #ifdef _DEBUG
 /******************
  *  debug commands
@@ -2018,6 +2031,7 @@ void IConsoleStdLibRegister()
 #ifdef _DEBUG
 	IConsoleDebugLibRegister();
 #endif
+	IConsoleCmdRegister("dump_command_log", ConDumpCommandLog, nullptr, true);
 
 	/* NewGRF development stuff */
 	IConsoleCmdRegister("reload_newgrfs",  ConNewGRFReload, ConHookNewGRFDeveloperTool);