Add gitattributes file to enforce LF, etc.

Author: rpavlik

.gitattributes

@@ -0,0 +1,30 @@
+# Auto detect text files and perform LF normalization
+* text=auto
+
+# Source files - keep them lf
+*.cs eol=lf
+
+# Custom for Visual Studio
+*.cs     diff=csharp
+*.sln    merge=union
+*.csproj merge=union
+*.vbproj merge=union
+*.fsproj merge=union
+*.dbproj merge=union
+
+# Standard to msysgit
+*.doc	 diff=astextplain
+*.DOC	 diff=astextplain
+*.docx diff=astextplain
+*.DOCX diff=astextplain
+*.dot  diff=astextplain
+*.DOT  diff=astextplain
+*.pdf  diff=astextplain
+*.PDF	 diff=astextplain
+*.rtf	 diff=astextplain
+*.RTF	 diff=astextplain
+
+# cmake launcher templates
+*.cmd.in text eol=crlf
+*vcproj.user.in text eol=crlf
+*vcxproj.user.in text eol=crlf