feature request: Support for SummarizedExperiment and MultiAssayExperiment

[TuomasBorman]

Hello,

Bioconductor has a long tradition of robust data containers that offer flexible and efficient ways to manage complex biological datasets. Among these, SummarizedExperiment (SE) and MultiAssayExperiment (MAE) have proven to be very usefull across multiple fields.

SE is widely used for single-omics data and extended for specialized applications, such as microbiome research with the TreeSummarizedExperiment. MAE is used for managing data from multiple experiments, such as metagenomics and metabolomics.

SE: https://bioconductor.org/packages/release/bioc/html/SummarizedExperiment.html
MAE: https://www.bioconductor.org/packages/release/bioc/html/MultiAssayExperiment.html

Currently, mixOmics does not support SE or MAE. I think adding the support would provide several advantages:

1. Users could easily integrate mixOmics with existing SE/MAE-based analyses
2. Support for SE/MAE would expand the toolkit available to researchers within these frameworks
3. It would attract new users already working within the SE/MAE ecosystem to use mixOmics tools

-Tuomas