cache more frame type bars and do real-time calc with lua

[zillionare]

Now we have only cache 1m bar in redis, and to get unclosed bars of 1w, we have to:

1. fetch week bars from persistent db
2. fetch day bars from persistent db for unclosed week
3. fetch 1m bars for today, and resample it into day bars
4. resample all these day bars into unclosed week bar
5. concatenate closed week bars with unclosed week bar

The whole process is tedious and not performant. If we have cached all 5m, 15m, 30m, 60m, 1d, 1w, 1M bars in redis, the performance will be much better.

To do this, we need to develop a lua script:

1. called every time upon arrival of 1m bars
2. update latest 5m (and others) bars by merging existed bar and latest 1m bar
3. start new entry for frames in (5m, 15m, 30m, 60m) at the begin of each frame type (could be parameter passed through by python)
4. clear cache after calibration, re-calc unclosed bar of week/month frame using latest closed day bars (python)
5. clear cached bars for week/month after this frame is closed, after calibration time.