Feature: #67880 - Added count to listNum

See Issue #67880

Description

A new property returnCount is added to the stdWrap property split.

When dealing with comma separated values like the content of field:records or similar, in some cases we need to know, how many items are present inside the csv.

Example:

# should return 9
1 = TEXT
1 {
        value = x,y,z,1,2,3,a,b,c
        split.token = ,
        split.returnCount = 1
}