Updates to powder/build forms

[Xarthisius]

This pull request updates the printer build and raw powder schema JSON files to improve data structure, naming consistency, and conditional logic for powder testing fields. The most significant changes include restructuring how raw powders are referenced, renaming several file fields for clarity, and adding conditional dependencies for particle size and virgin percentage fields based on a new "tested" checkbox.

Schema structure and data relationships:

• Changed the rawPowderID field in printer_build_schema.json to an array of strings, allowing multiple raw powders to be referenced instead of just one.
• Removed the relatedIdentifiers field from printer_build_schema.json, simplifying the schema and removing a hidden, readonly array of related identifier objects.

Field naming and clarity:

• Renamed openjzFile to buildFile and eosReportFile to reportFile in printer_build_schema.json for clearer and more generic file field names and descriptions.

Conditional logic and options:

• In raw_powder_schema.json, added a "Tested?" checkbox (tested field) to the particle size distribution group. All particle size and virgin percentage fields now depend on this checkbox being checked, improving data entry logic and UI clarity.

Material naming consistency:

• Updated the material enum in raw_powder_schema.json from "IN718" to "alloy718" for consistency with naming conventions.