Merge Component Definitions on UUID

[meganwolf0]

Describe what should be investigated or refactored

Currently the MergeComponentDefinitions merges components based on unique titles, it would probably be better/more compliant with OSCAL for this function to be merging them on unique component UUIDs instead.

This function also need to be re-worked such that it can merge two component definitions where one does not have any components (which is valid oscal)

Links to any relevant code

lula/src/pkg/common/oscal/component.go

Line 121 in 801551d

func MergeComponentDefinitions(original *oscalTypes.ComponentDefinition, latest *oscalTypes.ComponentDefinition) (*oscalTypes.ComponentDefinition, error) {

Additional context

None

Expected Deliverable

• Updated function to use component.UUID as map keys + Updated tests (will need to re-write these)