Update serviio.php

- Removed function getProfiles (functionality now in getReferenceData)
- Removed function getDescriptiveMetadataExtractors (functionality now in getReferenceData)
- Removed function getBrowsingCategoriesLanguages (functionality now in getReferenceData)
- Removed function getCpuCores (functionality now in getReferenceData)
- Removed function getCategoryVisibilityTypes (functionality now in getReferenceData)
- Removed function getProfiles (functionality now in getReferenceData)
- Added function getReferenceData (Serviio API 1.2)
- Renamed function getTranscoding to getDelivery
- Renamed function putTranscoding to putDelivery
- Updated function getDelivery to include subtitle values with reference to Serviio API 1.2
- Updated function putDelivery to include subtitle values with reference to Serviio API 1.2
- Updated function getStatus to serve boundNICName instead of IP (Serviio API 1.2)
- Updated function putStatus to save boundNICName instead of IP (Serviio API 1.2)
- Updated function getRemoteAccess to serve portMappingEnabled and externalAddress with reference to Serviio API 1.2
- Updated function putRemoteAccess to save portMappingEnabled and externalAddress with reference to Serviio API 1.2