feat: Adding Jackson to Java SDK

[antusus]

All important data is stored in Info classes for example BoxFile.Info. Info classes are not static and cannot exist without resource classes. Resource classes contains API connection and String ID. There is no possibility to deserialise them.

It makes little sense to introduce Jackson to SDK as we will gain nothing from its features.

[coveralls]

Pull Request Test Coverage Report for Build #1919

• 21 of 25 (84.0%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.03%) to 69.86%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/main/java/com/box/sdk/BoxJsonMapper.java	7	11	63.64%
<!--	Total:	21	25

Totals
Change from base Build #1909:	0.03%
Covered Lines:	7255
Relevant Lines:	10385

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💛 - Coveralls

[stale[bot]]

This issue has been automatically marked as stale because it has not been updated in the last 30 days. It will be closed if no further activity occurs within the next 7 days. Feel free to reach out or mention Box SDK team member for further help and resources if they are needed.

[antusus]

Created for testing purposes.