add columns from trials table to stimulus table

[matchings]

This is more of a scope of work than a specific issue. The analysis team needs to decide which columns to add to the flashes table, such as lick times, trial type, whether it was a change or not, whether it was in a grace period or not, etc.

@nicain @NileGraddis

[nicain]

@matchings is the "flashes" table the same as the "stimulus_presentations" table? Or is this something new?

[matchings]

@nicain yes, apologies for using those terms interchangeably. 'flash response df' is what i called the merge of the stimulus table with the cell traces, so I often say flashes instead of stimulus presentations or stim table. I will edit the issue title to reflect this.

[alexpiet]

@nicain I request that the stimulus_presentations includes columns:

• "change_image"
• "lick_times"
• "grace_period" true if this flash occurs during the grace period following a change

[alexpiet]

I also dont know what the "orientation" column is. Is this a hold-over from visual coding? Does it need to be there? I guess the early training sessions might need it? EDIT: this was already noted in #638

Omitted images should be here as well? EDIT: I was on an old version, omitted images have been added.