feat: add .gitattributes

Add a .gitattributes file to minimize issues when sharing the project
between different Operating Systems

File copied from https://github.com/B-AROL-O/ARNEIS

.gitattributes

@@ -0,0 +1,19 @@
+# See https://help.github.com/articles/dealing-with-line-endings/
+
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text=auto
+
+# Explicitly declare text files you want to always be normalized and converted
+# to native line endings on checkout.
+*.c text
+*.h text
+
+# Declare files that will always have CRLF line endings on checkout.
+*.sln text eol=crlf
+
+# Denote all files that are truly binary and should not be modified.
+*.pdf binary
+*.png binary
+*.jpg binary
+
+# EOF