Support optional dependencies and unify @Dependency property wrappers

[Supereg]

Support optional dependencies and unify @dependency property wrappers

♻️ Current situation & Problem

As of right now, we support infrastructure for two property wrappers @Dependency and @DynamicDependencies. The latter one induces particularly hard to understand syntax.
This PR revises the dependency infrastructure and removes @DynamicDependencies by introducing a result-builder-based approach.

Below code example demonstrates the difference:

class PreviousExample: Module {
    @DynamicDependencies var dynamicDependencies: [any Module]
    
    init() {
        self._dynamicDependencies = DynamicDependencies(
            moduleProperty: [
                Dependency(wrappedValue: ModuleA()),
                Dependency(wrappedValue: ModuleB())
            ]
        )
    }
}

class NewExample: Module {
    @Dependency var dependencies: [any Module]

    init() {
        _dependencies = Dependency {
            ModuleA()
            ModuleB()
        }
    }
}

⚙️ Release Notes

• Added support for optional dependencies
• Removed @DynamicDependencies in favor of a new DSL-based approach used within the @Dependency property wrapper directly.

📚 Documentation

Documentation was updated.

✅ Testing

Functionality was verified with existing test cases. New tests were added for new functionality.

📝 Code of Conduct & Contributing Guidelines

By submitting creating this pull request, you agree to follow our Code of Conduct and Contributing Guidelines:

• I agree to follow the Code of Conduct and Contributing Guidelines.

[codecov]

Codecov Report

Merging #91 (ee34612) into main (cf93e19) will decrease coverage by 2.00%.
The diff coverage is 88.71%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #91      +/-   ##
==========================================
- Coverage   93.46%   91.46%   -2.00%     
==========================================
  Files          28       30       +2     
  Lines         565      655      +90     
==========================================
+ Hits          528      599      +71     
- Misses         37       56      +19     

Files	Coverage Δ
...ilities/Communication/CollectPropertyWrapper.swift	100.00% <ø> (ø)
...ilities/Communication/ProvidePropertyWrapper.swift	100.00% <ø> (ø)
...bilities/Communication/StorageValueCollector.swift	100.00% <100.00%> (ø)
...abilities/Communication/StorageValueProvider.swift	100.00% <100.00%> (ø)
...ces/Spezi/Dependencies/DependencyDeclaration.swift	100.00% <100.00%> (ø)
Sources/Spezi/Dependencies/DependencyManager.swift	98.12% <100.00%> (+1.12%)	⬆️
Sources/Spezi/Module/Module.swift	100.00% <ø> (ø)
...rces/Spezi/Dependencies/DependencyCollection.swift	97.06% <97.06%> (ø)
Sources/Spezi/Dependencies/DependencyContext.swift	93.34% <93.34%> (ø)
...Spezi/Dependencies/DependencyPropertyWrapper.swift	90.20% <90.20%> (ø)
... and 1 more

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[PSchmiedmayer]

Thank you for the changes! As we already synced on this int he office: This looks great!

Amazing work over the lsat weeks where in Spezi to get it to 1.0, really appreciated @Supereg! 🚀