Function reset_filters

plugins/buildingplan/buildingplan.cpp:250–254

}

static void reset_filters(color_ostream &out) {
    cur_heat_safety.clear();
    cur_item_filters.clear();
    Lua::CallLuaModuleFunction(out, "plugins.buildingplan", "signal_reset");
}

static int16_t get_subtype(df::building *bld) {
    if (!bld)