Cleanup git setup

Author: simPod

.gitattributes

@@ -0,0 +1,10 @@
+# Set the default behavior, in case people don't have core.autocrlf set.
+* text eol=lf
+/.gitattributes export-ignore
+/.gitignore export-ignore
+/.github export-ignore
+/infection.json.dist export-ignore
+/phpcs.xml.dist export-ignore
+/phpstan.neon.dist export-ignore
+/phpunit.xml.dist export-ignore
+/tests export-ignore

.gitignore

@@ -1,7 +1,9 @@
-/vendor/
-/composer.lock
-/.phpcs-cache
 /.phpunit.result.cache
+/.phpcs-cache
+/infection.json
+/infection-log.txt
 /phpcs.xml
 /phpstan.neon
 /phpunit.xml
+/composer.lock
+/vendor/