Proto to JsonSchema well-known types support

[iliax]

1. Add support for predefined (well-known) protobuf types.
2. preservingProtoFieldNames mode is enabled for proto messages formatting to fit proto file's message's field names
3. Invalid oneof-processing logic removed
4. Integer type's ranges added

• Breaking change? (if so, please describe the impact and migration path for existing application instances)

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• I have performed a self-review of my own code
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• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged

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[sonarcloud]

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