Supporting edfapi version 4.x for eye link data

[teddphil]

Feature Description

Our users have reported the eye link data converted with the tool edfapi version higher than 4.0 may cause importing issue with PsPM in the latest version 6.0. This issue has appeared recently, and we have made attempts of adding the support for higher edfapi versions, but the problem does not seem to be fully resolved according to other user's reports. We are requesting users to use edfapi version 3.x currently as we wrote the importing function based on this version, but it may be useful to add support for higher edfapi versions in the future.

[dominikbach]

@4gwe could you check this with the most recent edfapi?

[4gwe]

@4gwe could you check this with the most recent edfapi?

Tested current develop with ASC files generated using the latest EDFAPI 5.1.607.0. Monocular EyeLink recordings at 250 Hz and 1000 Hz import correctly.