Updated openspaceengine.cpp to use updated ConfigurationManager

- Updated src/openspaceengine.cpp to utilize both lua configuration file
and lua configuration script
- Changed scripts/DefaultConfig.lua to be a lua configuration
- Renamned scripts/ExtraConfigScript.lua to be a lua configuration
script

scripts/ExtraConfigScript.lua

@@ -0,0 +1,15 @@
+musicname = "music2"
+lyrics = "This is not, the greatest lyrics in the world. This is just a tribute"
+
+configuration =
+{
+	level1_string = musicname,
+	level1_lyrics = lyrics,
+	level1_secrets = 
+	{
+		secret_stuff1 = "Password",
+		secret_stuff2 = "123456",
+	},
+	level2_double = 4.3
+
+}