Switch external submodule to Git LFS.

.gitmodules

@@ -7,9 +7,10 @@
 # A very large repository with Windows binaries
 [submodule "external"]
 	path = external
-	url = ../../lolengine/ext-binaries.git
+	url = ../../lolengine/binaries.git
+	branch = master
 
-# Some libraries we embed in the engine
+# A very large repository with Windows binaries
 [submodule "imgui"]
 	path = src/3rdparty/imgui
 	url = ../../lolengine/ext-imgui.git

external

@@ -1 +1 @@
-Subproject commit 84624715e1cb7358e9d96bf46e66d347f5171ae1
+Subproject commit 617c493e11ee0febdbfe16a257f8003f3989b75c