Loop preview sync for wav files

[cc-purno]

Many of the loops in well known libs like Vengeance are just wave files at a tempo in BPM indicated in their folder name or file name. Thus without embedded tempo info.
I usually make my tracks on these tempo's anyway, so there is no need for fancy time stretching etc. in this case.

For effectively auditing these .wav loops in sync with the song without converting all samples, it would be great to have one or both of the following options in the loop preview player:

1.) "Sync playback start with BARS" --> when you use loops with the same tempo of the track, the preview player could hold playback start until the next bar, thus effectively syncing the loop with your song.
(could also be configured by user to sync playback start "faster", like on the 16th note etc.)

2.) More experimental: "Get tempo info from folder name" --> Tracktion will get the tempo info from certain keywords in the sample(folder) name. Like 128 BPM.

I hope 1.) could be added in an update.

CC