Add tasks for all the new languages

Task/Ordered-words/Nim/ordered-words.nim

@@ -0,0 +1,21 @@
+import httpclient, strutils
+
+proc isSorted(s): bool =
+  var last = low(char)
+  for c in s:
+    if c < last:
+      return false
+    last = c
+  return true
+
+const url = "http://www.puzzlers.org/pub/wordlists/unixdict.txt"
+var mx = 0
+var words: seq[string] = @[]
+
+for word in getContent(url).split():
+  if word.len >= mx and isSorted(word):
+    if word.len > mx:
+      words = @[]
+      mx = word.len
+    words.add(word)
+echo words.join(" ")