Add id for Action protocol

[skywalkerlw]

Description

This MR is to add an optional id property to Action protocol

Why

With id added, we don't need to run all cases in reducer, here is an example

// old

func appStateReducer(state: AppState, action: Action) -> AppState {
    var state = state
    state.nextRacesState = nextRacesStateReducer(state: state.nextRacesState, action: action)
    state.timestampSyncState = timestampSyncStateReducer(state: state.timestampSyncState, action: action)
    return state
}

// new

func appStateReducer(state: AppState, action: Action) -> AppState {
    var state = state
    switch action.id {
    case NextRacesActions.actionId:
        state.nextRacesState = nextRacesStateReducer(state: state.nextRacesState, action: action)
    case TimestampSyncActions.actionId:
        state.timestampSyncState = timestampSyncStateReducer(state: state.timestampSyncState, action: action)
    default:
        print("do nothing")
    }
    return state
}

[haifengkao]

why don't you just check the type of action?