[TASK] Clean up phpDoc comments in t3lib_admin

* Provide correct parameter names in phpDoc
* Provide correct data types in phpDoc
* CGLify phpDoc (remove tabs)
* CGLify method signatures (the first line of the method)

Change-Id: Ie5c9e6db3834a57ef3501b4eda783851e1fc6937
Resolves: #36852
Releases: 6.0
Reviewed-on: http://review.typo3.org/11006
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn