Added Ruby thread test

tests/RubyThread.rb

@@ -0,0 +1,23 @@
+module RubyThread
+    @counter = 0
+
+    def self.inc_counter()
+        while true
+            sleep(1)
+            @counter = @counter + 1
+        end
+    end
+
+    def self.cmd_rcount()
+        return Proc.new {
+            instance_eval {
+                Prof::cons_show("RCounter: " + @counter)
+            }
+        }
+    end
+
+    def self.prof_init(version, status)
+        Thread.new { self.inc_counter() }
+        Prof::register_command("/rcount", 0, 0, "/rcount", "Ruby threaded example", "Ruby threaded example", cmd_rcount)
+    end
+end