I've spent some time loading all the legato vib to Logic Pro X's EXS24 sampler and loop all the samples (for continuous sound). In some of the samples, I could not find a totally 'clean' loop, but it's fair.
To add to Logic Pro: Unzip and move the files inside (EXS24 file and a sample folder) to your Sampler Instruments folder. On my machine it's on Music > Audio Music Apps. There is an EXS24 file and a folder, both named 'Solo Violin Legato'. Both need to be placed in that folder.