Added TargetOpenAPIVersion CommandOption.#98

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ozippy wants to merge 2 commits intoOData:masterfrom

Commits on Sep 6, 2019

Added TargetOpenAPIVersion CommandOption. It will be v3 unless 2 is specified. Chyanged OpenAPIGenerator to use config.SpecVersion
ozippy
committed
Added the options to the description of the command option
ozippy
committed