Json mapping samples

[ptorres-prowide]

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[Copilot]

Pull Request Overview

This PR adds comprehensive JSON mapping samples and example code for the CBOE implementation, demonstrating various transformation scenarios between different message formats (MX, MT, and JSON).

• Adds four new sample text files documenting input/output examples for mx2json, mt2json, json2mx, and json2mt transformations
• Implements 16 Java example classes demonstrating different mapping scenarios including simple mappings, relative paths, foreach operations, and sequences
• Removes the legacy Mt2JsonExample.java class and replaces it with more focused example implementations

Reviewed Changes

Copilot reviewed 18 out of 22 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
mx2json_samples.txt	Documents MX to JSON transformation examples across different sheet configurations (SIMPLE, RELATIVE, FOREACH, FOREACH_REL)
mt2json_samples.txt	Provides MT to JSON transformation sample with a SIMPLE sheet example
json2mx_samples.txt	Shows JSON to MX transformation examples with various mapping patterns (SIMPLE, PATH, REPLICATED, REP_VALUESET)
json2mt_samples.txt	Demonstrates JSON to MT transformation samples covering different scenarios (SIMPLE, INDEX, SEQUENCE, REP_SEQ)
Mx2JsonExample1-4.java	Four example classes demonstrating different MX to JSON transformation scenarios
Mt2JsonExample1.java	Replaces old Mt2JsonExample with focused implementation
Json2MxExample1-4.java	Four example classes for JSON to MX transformations
Json2MtExample1-4.java	Four example classes for JSON to MT transformations
Mt2JsonExample.java	Legacy example removed in favor of new focused implementations

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