format-date 5 arguments method overload not implemented

[mstevan]

@mstevan
test-set: format-date.xml
test-cases: format-date-en126 to format-date-en134

@team
Seems that whole feature is missing. Please investigate

Input:
let $d := date("2003-12-07") return for $i in 1 to 7 return let $d2 := $d + dayTimeDuration("P1D")*$i return
         format-date($d2, "[FNn]", "en", (), ())

Output:
⚠️ ️️here was an error.
 
Code: [XPST0017] (this code can be looked up in the documentation and specifications).
 
Location information: file:/Users/mstevan/Documents/:LINE:2:COLUMN:9:
 
Undefined function call; Entered function name and arity doesn't match a defined function signature: "format-date" called with 5 parameters.

Expected output:
Monday Tuesday Wednesday Thursday Friday Saturday Sunday