Add Doxygen and Wget modules. Very simple. But might be more complex later, so let's use them asap

Modules/FindDoxygen.cmake

@@ -0,0 +1,7 @@
+# 
+# this module looks for Doxygen
+#
+
+FIND_PROGRAM(DOXYGEN
+  doxygen
+)

Modules/FindWget.cmake

@@ -0,0 +1,7 @@
+# 
+# this module looks for wget
+#
+
+FIND_PROGRAM(WGET
+  wget
+)