Smaller package size by using export-ignore

Author: nreynis

.gitattributes

@@ -0,0 +1,12 @@
+/.gitattributes export-ignore
+/.github export-ignore
+/.gitignore export-ignore
+/.php-cs-fixer.dist.php export-ignore
+/docs export-ignore
+/mkdocs.yml export-ignore
+/phpstan.neon.dist export-ignore
+/phpunit.xml.dist export-ignore
+/phpmd.xml.dist export-ignore
+/samples export-ignore
+/tests export-ignore
+

docs/changes/1.2.0.md

@@ -14,6 +14,7 @@
 - HTML Writer by [@Progi1984](https://github.com/Progi1984) fixing [#221](https://github.com/PHPOffice/PHPPresentation/pull/221), [#567](https://github.com/PHPOffice/PHPPresentation/pull/567), [#644](https://github.com/PHPOffice/PHPPresentation/pull/644) in [#850](https://github.com/PHPOffice/PHPPresentation/pull/855)
 - PDF Writer by [@Progi1984](https://github.com/Progi1984) fixing [#181](https://github.com/PHPOffice/PHPPresentation/pull/181), [#381](https://github.com/PHPOffice/PHPPresentation/pull/381), [#472](https://github.com/PHPOffice/PHPPresentation/pull/472), [#693](https://github.com/PHPOffice/PHPPresentation/pull/693), [#725](https://github.com/PHPOffice/PHPPresentation/pull/725) in [#850](https://github.com/PHPOffice/PHPPresentation/pull/855)
 - PowerPoint2007 Reader : Support for BarChart by [@Progi1984](https://github.com/Progi1984) fixing [#824](https://github.com/PHPOffice/PHPPresentation/pull/824) in [#856](https://github.com/PHPOffice/PHPPresentation/pull/856)
+- Smaller package size
 
 ## Bug fixes