Higher m(eegamma) mass threshold for enable eta mass fit

M(eegamma) mass cut from 600 MeV -> 700 MeV for enable eta mass fit

FYI @johndan , @mwilkins , @philten , @jkautz .

BW Impact

Less than 1 MB/s increase to QEE Turbo-stream BW to disk (@Sprucing). See: !3811 (comment 8417515)

ToDo

• QEE Code Review Sign-off (@lugrazet, @isanders)
• QEE BW Sign-off (@rjhunter, @dzuliani), but Trivial due to such small BW impact