Merge pull request #2 from xna-to-monogame/add/aiming-sample

Ported Aiming Sample

.gitmodules

@@ -7,3 +7,6 @@
 [submodule "SkinnedModel_MonoGame"]
 	path = SkinnedModel_MonoGame
 	url = https://github.com/SimonDarksideJ/SkinnedModel_MonoGame
+[submodule "AimingSample"]
+	path = AimingSample
+	url = https://github.com/xna-to-monogame/AimingSample.git

AimingSample

@@ -0,0 +1 @@
+Subproject commit cde5473c36934725af3ac718bcd8ebbbcc0b34a0