Move Go models to Packages::Go

Merged Ethan Reesor requested to merge ethan.reesor/contrib/gitlab:relocate-go-models into master

What does this MR do?

  • Moves Packages::GoModule to Packages::Go::Module
  • Moves Packages::GoModuleVersion to Packages::Go::ModuleVersion

These models were introduced in !27746 (merged). The models for the other package managers were refactored after work was begun on !27746 (merged) but before it was merged.

Does this MR meet the acceptance criteria?

Conformity

Availability and Testing

Edited by Ethan Reesor