Change to bright_use_group1=True option in firstrame

[stscijgbot-jp]

Issue JP-3888 was created on JIRA by Karl Gordon:

The option bright_use_group1 in the firstframe step is currently set to False. It should be set to True once the appropriate testing by the MIRI team for all modes is completed. This ticket is to motivate the testing and then changing to True for this option. This change will only affect pixels that saturate between the 2nd and 3rd groups that currently have NaN values. Changing this will create measurements for these pixels that are accurate to at least 1% (see report on this topic).

[stscijgbot-jp]

Comment by David Law on JIRA:

Assigning to Boris Trahin to coordinate MIRI input.

[stscijgbot-jp]

Comment by David Law on JIRA:

Noting also that once MIRI signs off on this, it should be possible to implement via a param ref file update.

[stscijgbot-jp]

Comment by Karl Gordon on JIRA:

Agreed that this can be updated via a parameter reference file. Note that there currently is no parameter reference file for firstframe, hence one will need to be created.