Performance metrics in Autosubmit/GUI

Following the conversation started in #522 (comment 77443)

Yes, sometimes I have been looking in the GUI and missed this information, have real timestamps. Another twist, but very reliable with the information that we have, would be to filter all the SIM jobs (if there's any), get the total simulated time (sum of SIM running times avoiding job repetitions) and divide by the simulated time chunkchunk_sizenchunks - startdate. That would give you an estimated number of SYPD. If you count queuing times you would have ASYPD. Well, we can define this a little bit more but this is something that definitely we will have one day.

We will include in this issue the metrics that we can implement in Autosubmit/GUI and dicuss about their development.