Add tasks for all the new languages

Task/Call-a-function/LFE/call-a-function-1.lfe

@@ -0,0 +1,2 @@
+(defun my-func()
+  (: io format '"I get called with NOTHING!~n"))

Task/Call-a-function/LFE/call-a-function-2.lfe

@@ -0,0 +1,3 @@
+> (my-func)
+I get called with NOTHING!
+ok

Task/Call-a-function/LFE/call-a-function-3.lfe

@@ -0,0 +1,2 @@
+(defun my-func(a b)
+  (: io format '"I got called with ~p and ~p~n" (list a b)))

Task/Call-a-function/LFE/call-a-function-4.lfe

@@ -0,0 +1,3 @@
+> (my-func '"bread" '"cheese")
+I got called with "bread" and "cheese"
+ok

Task/Call-a-function/LFE/call-a-function-5.lfe

@@ -0,0 +1,14 @@
+(defmodule args
+  (export all))
+
+(defun my-func ()
+  (my-func () () ()))
+
+(defun my-func (a)
+  (my-func a () ()))
+
+(defun my-func (a b)
+  (my-func a b ()))
+
+(defun my-func (a b c)
+  (: io format '"~p ~p ~p~n" (list a b c)))

Task/Call-a-function/LFE/call-a-function-6.lfe

@@ -0,0 +1,16 @@
+> (slurp '"args.lfe")
+#(ok args)
+> (my-func)
+[] [] []
+ok
+> (my-func '"apple")
+"apple" [] []
+ok
+> (my-func '"apple" '"banana")
+"apple" "banana" []
+ok
+> (my-func '"apple" '"banana" '"cranberry")
+"apple" "banana" "cranberry"
+ok
+> (my-func '"apple" '"banana" '"cranberry" '"bad arg")
+exception error: #(unbound_func #(my-func 4))

Task/Call-a-function/LFE/call-a-function-7.lfe

@@ -0,0 +1,4 @@
+...
+  (cond ((== count limit) (hit-limit-func arg-1 arg-2))
+        ((/= count limit) (keep-going-func count)))
+  ...

Task/Call-a-function/LFE/call-a-function-8.lfe

@@ -0,0 +1,2 @@
+> (>= 0.5 (: math sin 0.5))
+true

Task/Call-a-function/LFE/call-a-function-9.lfe

@@ -0,0 +1,2 @@
+(let ((x (: math sin 0.5)))
+  ...)