splits names and creates a matrix
Examples
dat = c("bla_ra0/2_run0","bla_ra1/2_run0","bla_ra2/2_run0")
names_to_matrix(dat,split="\\_|\\/")
#> [,1] [,2] [,3] [,4]
#> [1,] "bla" "ra0" "2" "run0"
#> [2,] "bla" "ra1" "2" "run0"
#> [3,] "bla" "ra2" "2" "run0"