array :dict-keys ( dict $DICT )

Takes a dictionary and returns an array containing all the keys present in the dictionary. Keys are sorted ASCII-wise.
Order of elements is the same as in :dict-values - keys match values at the indexes.

# Dictionary example.
:set &D :dict s'one' s'eins' s'two' s'zwei' s'three' s'drei'
:set &D[s'four'] s'vier'
:set &K :dict-keys &D
:set &V :dict-values &V
:set &C i0
!while :lt $C :dict-count &D
    :writeln $K[$C] s' == ' $V[$C]
    :add &C i1
    !done