This functions calls the XML-RPC method listSolversInCategory() of NEOS and returns an object of class NeosAns. The returned content is a list of solver:input for every solver in the category (category can be abbreviation or full_name).
category: Character, the abbreviation of a category
convert: Logical, if convert = TRUE (the default) the value of the returned XML-RPC result is extracted and returned as character, otherwise the XML-RPC string is returned.
nc: Object of class NeosComm: By default, this argument is set by calling CreateNeosComm()
and thereby using the default values of this function.