chore: add .gitsttribute to avoit eol problem in future

.gitattributes

@@ -0,0 +1,17 @@
+# Configuration to handle line endings for working with Windows and Unix
+# Reference: 
+# https://help.github.com/articles/dealing-with-line-endings/
+# https://git-scm.com/docs/gitattributes#_checking_out_and_checking_in
+
+* text=auto
+
+*.c text
+*.cpp text
+*.h text
+*.hpp text
+*.ino text
+*.py text
+
+
+*.sh text eol=lf
+*.bat text eol=crlf