Add freetype dependency

.gitmodules

@@ -10,3 +10,6 @@
 [submodule "inferno/vendor/stb"]
 	path = inferno/vendor/stb
 	url = https://github.com/nothings/stb
+[submodule "inferno/vendor/freetype"]
+	path = inferno/vendor/freetype
+	url = https://github.com/aseprite/freetype2

README.org

@@ -35,7 +35,7 @@ Or
 * Libraries
 
 # - [[https://github.com/bulletphysics/bullet3][Bullet]]
-# - [[https://github.com/aseprite/freetype2][FreeType2]]
+- [[https://github.com/aseprite/freetype2][FreeType2]]
 - [[https://github.com/Dav1dde/glad][glad]]
 - [[https://github.com/glfw/glfw][GLFW]]
 - [[https://github.com/g-truc/glm][GLM]]

inferno/vendor/freetype

@@ -0,0 +1 @@
+Subproject commit fbbcf50367403a6316a013b51690071198962920