Add tasks for all the new languages

Task/Multisplit/Nim/multisplit.nim

@@ -0,0 +1,19 @@
+import strutils
+
+iterator tokenize(text, sep): tuple[token: string, isSep: bool] =
+  var i, lastMatch = 0
+  while i < text.len:
+    for j, s in sep:
+      if text[i..text.high].startsWith s:
+        if i > lastMatch: yield (text[lastMatch .. <i], false)
+        yield (s, true)
+        lastMatch = i + s.len
+        i += s.high
+        break
+    inc i
+  if i > lastMatch: yield (text[lastMatch .. <i], false)
+
+for token, isSep in "a!===b=!=c".tokenize(["==", "!=", "="]):
+  if isSep: stdout.write '{',token,'}'
+  else:     stdout.write     token
+echo ""