Initial Release of the DecompPipeline

This is the initial release of the DecompPipeline. It provides basic functionality to preprocess DNA methylation data for analysis with MeDeCom, including three steps:
(i) Filtering CpG sites according to reliability (both for array-based data prepare_data and BS data prepare_data_BS).
(ii) Selecting CpG subsets for downstream analysis (prepare_CG_subsets).
(iii) Starting MeDeCom runs using start_medecom_analysis.

DecomPipeline also creates outputs that can be read by FactorViz for further exploration of deconvolution results in a shiny-based interface.