public Builder addDependency(String dependencyType, String packageName, String version) {
            return addDependency(SymbolDependency.builder()
                    .dependencyType(dependencyType)
                    .packageName(packageName)
                    .version(version)
                    .build());
        }
Add a symbol dependency.

@param dependencyType Type of dependency.
@param packageName Name of the package to depend on.
@param version Version to depend on.
@return Returns the builder.
smithy-codegen-core/src/main/java/software/amazon/smithy/codegen/core/Symbol.java