Feature: TSV file generation

**Is your feature request related to a problem? Please describe.**
Model-builder plugin can automatically create .tsv file from folder structure, but there is no simple way to get this file.

**Describe the solution you'd like**
I would like a way to access the generated .tsv file, even before any learning has been commenced. I currently just go to the TEMP folder and find the latest .tsv file there, but this is a bothersome workaround.

**Describe alternatives you've considered**
A library function that could be called on a folder would be nice too.

**Additional context**
This is related to my question on marketplace:

https://marketplace.visualstudio.com/items?itemName=MLNET.07&ssr=false#qna

`I love the simple approach to loading image data, can we get a tool and also a function in code to allow us to get the .tsv file directly from folder? Currently I have to load the data, then go to %appdata%/Local/Temp and find the generated .tsv file if I want to use it.`

No se nombran archivos, pruebas ni puntos de entrada. Empieza por localizar la ruta de generación de TSV del model-builder plugin y determina cómo podría exponerse el archivo generado antes de que comience el aprendizaje; estará terminado cuando los usuarios puedan acceder a él directamente sin tener que buscar en la carpeta TEMP.

Escrito por el modelo de indexación a partir del texto del issue.