Add .gitattributes to keep line endings normalized

.gitattributes

@@ -0,0 +1,13 @@
+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Explicitly declare code/VS files as CRLF
+*.cpp eol=crlf
+*.h eol=crlf
+*.hlsl eol=crlf
+*.vcxproj eol=crlf
+*.filters eol=crlf
+*.sln eol=crlf
+
+# Explicitly declare resource files as binary
+*.bin binary