function cElms = li_splitbp(sBp)
Splits simulink blockpath <sBp> into its elements at all single slashes ('/') contained and returns the result in row vector cell array <cElms>. Two consecutive slashes ('//') are not considered a separator but a delimited literal single slash and are replaced respectively. Example: cElms = li_splitbp('mdl/subs/subs2//aaa/blk') yields cElms = {'mdl' 'subs' 'subs2/aaa' 'blk'}