qscore: Create an object of type qscore
In MANOR: CGH Micro-Array NORmalization

qscore object is a list which contains a function, a name, and optionnally a label and arguments to be passed to the function.

1	to.qscore(FUN, name=NULL, args=NULL, label=NULL, dec=3)

`FUN`	a R function returning a numeric value, with first argument of type `arrayCGH`, and optionally other arguments.
`name`	a short character value for `qscore` object identification
`args`	a list of arguments to be passed to `FUN`; defaults to NULL (ie `arrayCGH` is the only argument to `FUN`)
`label`	a character value for `qscore` object labelling
`dec`	an integer value giving the number of significant digits to keep (defaults to 3)