Add stereo image#1

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eddylan2894 wants to merge 4 commits intomasterfrom

add_stereo_image

Commits on Jan 28, 2018

fix D435i IMU data storage and remove NANO-MARK1 camera type
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Commits on Oct 25, 2019

add two camera support, add imu and depth support for D435i
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Commits on Nov 5, 2019

save lossless depth image
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Commits on Nov 19, 2019

fix --js
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