Fix checkout line endings in .g.cs files

ClangSharp will always generate files with LF, but the --headerFile is copied as-is.
This resulted in files with CR LF and LF line endings, confusing git which would always
report changes in line endings.

This is fixed by checking out *.g.cs and the license headers fed into ClangSharp with LF.

The files have always beeen normalised to LF endings on commit, so this change is not visible in git.

.gitattributes

@@ -22,4 +22,8 @@ App.config text eol=crlf
 .gitignore text eol=lf
 .gitattributes text eol=lf
 *.md text eol=lf
-.travis.yml text eol=lf
+.travis.yml text eol=lf
+
+# Use lf for files used by ClangSharpPInvokeGenerator
+*-license-header.txt text eol=lf
+*.g.cs text eol=lf

SDL3-CS/generate_bindings.py

@@ -255,7 +255,7 @@ def typedef(t):
 
 base_command = [
     "dotnet", "tool", "run", "ClangSharpPInvokeGenerator",
-    "--headerFile", csproj_root / "SDL.licenseheader",
+    "--headerFile", csproj_root / "SDL-license-header.txt",
 
     "--config",
     "latest-codegen",