[Add] Analyze: selection rule counts

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Fix] getData: vnames were defined inside a condition

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>
[Add] importMst: to import master files (.csv or .tab)

Signed-off-by: Oleg Komarov <o.komarov11@imperial.ac.uk>