feat: Fine-Tuning Implementation - Part 4-10

[ishaansehgal99]

Since there are many moving pieces this is a big PR that needs to test the whole flow - this will be getting continously broken down into smaller PRs.

1. Modularizing common functions from preset-inferences.go and preset-tuning.go into common-presets.go
2. Handling DataSources in init containers (URL, Image, hostPath) (WIP)
3. Creating up a Tuning Job manifest
4. Handling DataDestinations (TODO)
5. Handling Adapter Loading on inference side (TODO)