fix: small robustness fixes in sync, fnirs and xdf - #316

fix: small robustness fixes in sync, fnirs and xdf#316

Ramdam17 merged 5 commits into

masterppsp-team/HyPyP:masterfrom

fix/small-fixes-fnirs-xdf-syncppsp-team/HyPyP:fix/small-fixes-fnirs-xdf-syncCopy head branch name to clipboard