Allow VMMR and VCR without LPR (Vehicles without license plate)

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Right now VMMR and VCR are only called on vehicles with plates.
Allow Make Model recognition + Color Recognition on Vehicles without plates.

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Support for Vehicle without license plates will be part of version 3.2 to be released before end of December 2020. The code is already deployed on the cloud at https://www.doubango.org/webapps/alpr/

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Added in 3.2: https://www.doubango.org/SDKs/anpr/docs/Configuration_options.html#car-noplate-detect-enabled