LDAP authentication support (#815)

.github/FUNDING.yml

@@ -1 +1,2 @@
-github: kevinpapst
+github: [kevinpapst]
+custom: https://www.kimai.org/donate/

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,6 +7,6 @@ A clear and concise description of what this pull request adds or changes.
 - [ ] Breaking change (fix or feature that would cause existing functionality to change)
 
 ## Checklist
-- [ ] I verified that my code applies to the guidelines (`composer code-check`)
+- [ ] I verified that my code applies to the guidelines (`composer kimai:code-check`)
 - [ ] I updated the documentation (see [here](https://github.com/kimai/www.kimai.org/tree/master/_documentation))
 - [ ] I agree that this code is used in Kimai and will be published under the [MIT license](https://github.com/kevinpapst/kimai2/blob/master/LICENSE)