[Feature] Checking the sample rate of a track

[alexandrChabatul]

Description

Hi. If I have a track with a sample rate of 48000 and when I load it into the spleeter, the output file is saved with a sample rate of 44100 (as written in the config files). This causes the track to stretch by 10% or so. Is it possible to adjust the sampling rate, and if not, then we can simply add such a feature, for example, we can pass the frame rate to the splitter constructor or read it directly inside from the file.

I will be grateful for the reaction.