Add tasks for all the new languages

Task/Floyds-triangle/Nim/floyds-triangle.nim

@@ -0,0 +1,24 @@
+import strutils
+
+proc floyd(rowcount = 5): seq[seq[int]] =
+  result = @[@[1]]
+  while result.len < rowcount:
+    let n = result[result.high][result.high] + 1
+    var row = newSeq[int]()
+    for i in n .. n + result[result.high].len:
+      row.add i
+    result.add row
+
+proc pfloyd(rows) =
+  var colspace = newSeq[int]()
+  for n in rows[rows.high]: colspace.add(($n).len)
+  for row in rows:
+    for i, x in row:
+      stdout.write align($x, colspace[i])," "
+    echo ""
+
+echo floyd()
+
+for i in [5, 14]:
+  pfloyd(floyd(i))
+  echo ""