Added .gitattribute file

Added a .psb line

.gitattributes

+## Unity ##
+
+*.cs diff=csharp text
+*.cginc text
+*.shader text
+
+*.mat merge=unityyamlmerge eol=lf
+*.anim merge=unityyamlmerge eol=lf
+*.unity merge=unityyamlmerge eol=lf
+*.prefab merge=unityyamlmerge eol=lf
+*.physicsMaterial2D merge=unityyamlmerge eol=lf
+*.physicMaterial merge=unityyamlmerge eol=lf
+*.asset merge=unityyamlmerge eol=lf
+*.meta merge=unityyamlmerge eol=lf
+*.controller merge=unityyamlmerge eol=lf
+
+
+## git-lfs ##
+
+#Image
+*.jpg filter=lfs diff=lfs merge=lfs -text
+*.jpeg filter=lfs diff=lfs merge=lfs -text
+*.png filter=lfs diff=lfs merge=lfs -text
+*.gif filter=lfs diff=lfs merge=lfs -text
+*.psd filter=lfs diff=lfs merge=lfs -text
+*.psb filter=lfs diff=lfs merge=lfs -text
+*.ai filter=lfs diff=lfs merge=lfs -text
+*.tif filter=lfs diff=lfs merge=lfs -text
+
+#Audio
+*.mp3 filter=lfs diff=lfs merge=lfs -text
+*.wav filter=lfs diff=lfs merge=lfs -text
+*.ogg filter=lfs diff=lfs merge=lfs -text
+
+#Video
+*.mp4 filter=lfs diff=lfs merge=lfs -text
+*.mov filter=lfs diff=lfs merge=lfs -text
+
+#3D Object
+*.FBX filter=lfs diff=lfs merge=lfs -text
+*.fbx filter=lfs diff=lfs merge=lfs -text
+*.blend filter=lfs diff=lfs merge=lfs -text
+*.obj filter=lfs diff=lfs merge=lfs -text
+
+#ETC
+*.a filter=lfs diff=lfs merge=lfs -text
+*.exr filter=lfs diff=lfs merge=lfs -text
+*.tga filter=lfs diff=lfs merge=lfs -text
+*.pdf filter=lfs diff=lfs merge=lfs -text
+*.zip filter=lfs diff=lfs merge=lfs -text
+*.dll filter=lfs diff=lfs merge=lfs -text
+*.unitypackage filter=lfs diff=lfs merge=lfs -text
+*.aif filter=lfs diff=lfs merge=lfs -text
+*.ttf filter=lfs diff=lfs merge=lfs -text
+*.rns filter=lfs diff=lfs merge=lfs -text
+*.reason filter=lfs diff=lfs merge=lfs -text
+*.lxo filter=lfs diff=lfs merge=lfs -text
\ No newline at end of file