Added clockhands from Toal's website example

Author: Undalevein

nim/clockhands.nim

@@ -0,0 +1,8 @@
+import std/strformat
+
+for i in 0..10:
+  let t = (43200 * i + 21600) div 11
+  let h = t div 3600
+  let m = (t div 60) mod 60
+  let s = t mod 60
+  echo &"{(if h == 0: 12 else: h):02}:{m:02}:{s:02}"

nim/test.ps1

@@ -9,6 +9,9 @@ function Assert-MatchTests {
 }
 
 $Error.clear()
+nim c "$PSScriptRoot\clockhands.nim" && . "$PSScriptRoot\clockhands.exe" |
+    Compare-Object (Get-Content "$PSScriptRoot\..\test\clockhands_expected") |
+    Assert-MatchTests &&
 nim c "$PSScriptRoot\permutations.nim" && . "$PSScriptRoot\permutations.exe" I like carrots |
     Compare-Object (Get-Content "$PSScriptRoot\..\test\carrots_expected") |
     Assert-MatchTests &&