[FEATURE] Dashes and Underscores in participant ID

[minjungkim85]

Hello there. I like to assign my own participant IDs and condition names using _participantIDGetBool , instead of using the automatically generated ones. For example, by default, EasyEyes generates random strings, like CoolBlueSky_[timestamp].csv. It would be easier for me if I could assign my own string, like subj001_condition1_[timestamp].csv. Right now, _participantIDGetBool allows me to use alphanumeric strings, but does not allow me to use dashes or underscores.