Add simple pattern tokenizers

[Xtansia]

Description

Add simple pattern tokenizers

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[github-actions]

Changes Analysis

Commit SHA: ca43f3d
Comparing To SHA: 60a9b3b

API Changes

Summary

└─┬Components
  ├──[➕] schemas (41536:7)
  ├──[➕] schemas (41549:7)
  └─┬_common.analysis___TokenizerDefinition
    ├──[➕] oneOf (40721:7)
    ├──[➕] oneOf (41580:7)
    ├─┬ONEOF
    │ └──[🔀] $ref (41550:9)❌ 
    └─┬ONEOF
      └──[🔀] $ref (41537:9)❌ 

Document Element	Total Changes	Breaking Changes
components	6	2

• ❌ BREAKING Changes: 2 out of 6
• Modifications: 2
• Additions: 4
• Breaking Modifications: 2

Report

The full API changes report is available at: https://github.com/opensearch-project/opensearch-api-specification/actions/runs/13423099679/artifacts/2619617234

API Coverage

	Before	After	Δ
Covered (%)	663 (64.94 %)	663 (64.94 %)	0 (0 %)
Uncovered (%)	358 (35.06 %)	358 (35.06 %)	0 (0 %)
Unknown	45	45	0

[github-actions]

Spec Test Coverage Analysis

Total	Tested
595	593 (99.66 %)