Add tasks for all the new languages

Task/Rep-string/LFE/rep-string-1.lfe

@@ -0,0 +1,13 @@
+(defun get-reps (text)
+  (lists:filtermap
+   (lambda (x)
+     (case (get-rep text (lists:split x text))
+       ('() 'false)
+       (x `#(true ,x))))
+   (lists:seq 1 (div (length text) 2))))
+
+(defun get-rep
+  ((text `#(,head ,tail))
+   (case (string:str text tail)
+     (1 head)
+     (_ '()))))

Task/Rep-string/LFE/rep-string-2.lfe

@@ -0,0 +1,10 @@
+(defun report
+  ((`#(,text ()))
+   (io:format "~p has no repeating characters.~n" `(,text)))
+  ((`#(,text (,head . ,_)))
+   (io:format "~p repeats ~p every ~p character(s).~n" `(,text ,head ,(length head))))
+  ((data)
+   (lists:map
+    #'report/1
+    (lists:zip data (lists:map #'get-reps/1 data)))
+   'ok))