feat(gpu): add to server model

[Shillaker]

Summary

This PR adds GPU component support to server configurations, allowing servers to include GPU data from archetypes when available.

Note: this is part one of two. In part two I will add the CSV file(s) with GPU specs and fuzzy-match lookup based on name.

Changes

GPU model:

• Rename GPU adpe factor to adp, and tpe to pe so that they match other server components
• Add name field to GPU
• Allow GPU to handle impact factors that are not supported (e.g. primary energy)
• Add completion functions for all GPU fields other than vram, to fill them with the default archetype values. This is necessary to support the server data model, where we only specify vram in the server archetype
• Add test to check that GPU with only vram specified has more impact if the value of vram is larger

Server model:

• Add GPU property to DeviceServer model that populates from archetype data
• Add GPU field to ConfigurationServer DTO
• Include GPU in server components list for impact calculations
• Update server tests to include GPUs

Note: the PR is split into meaningful commits for review.