[GPU][NPU] Unify Level Zero loading (#34928)
### Details:
- Extract NPU Level Zero loading logic
- Adds plugin independent target "openvino_zero_loader" that is
statically linked to NPU and GPU plugins
- GPU plugin is using more functions than NPU. Missing functions were
added to `symbols_list` and failure to load any function will result in
exception for both GPU and NPU plugin
### Tickets:
- [CVS-182598](https://jira.devtools.intel.com/browse/CVS-182598)
### AI Assistance:
- *AI assistance used: no*
