moved get_direction from *_input.cc to input.h

src/console_input.cc

@@ -5,17 +5,6 @@
 console_input::console_input(std::istream &cin):
         in{cin} {}
 
-inline game_command get_direction(std::string &str, const char *COMMANDS[],
-                                  const int COMMANDS_CNT) {
-        for (int i = 0; i < COMMANDS_CNT; ++i)
-                if (str == COMMANDS[i] &&
-                    i >= game_command::move_north &&
-                    i <= game_command::move_southeast)
-                        return (game_command)i;
-
-        return game_command_panic;
-}
-
 game_command console_input::get_command() {
         const char *COMMANDS[] = {
                 "q", "no", "so", "ea", "we", "ne", "nw", "se", "sw", "u", "a"