Add permutations feature to DOSDP patterns schema

[matentzn]

Fixes #87

[Copilot]

Pull request overview

This PR adds a permutations feature to the DOSDP patterns schema, enabling automatic generation of additional annotations by permuting over annotation property values from filler terms. The feature supports generating the cartesian product when multiple permutation entries are specified.

• Adds a new permutation schema definition with required fields for variable and annotation properties
• Integrates permutations into both printf_annotation and printf_annotation_obo definitions
• Provides a test pattern demonstrating the feature usage

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/schema/dosdp_schema.yaml	Adds the permutation definition and integrates it into annotation schemas to enable synonym generation through permutations
src/schema/test/positive_test_set/patterns/acute_with_permutations.yaml	Provides a test pattern demonstrating the permutations feature for generating synonyms from disease exact_synonym values

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