Add images for javascript examples
Add screenshots of sample usage for javascript examples.
ADD
examples/images/javascript-sensors-viewer-stream-test.png
examples/images/javascript-sensors-viewer-stream-test.png
Binary files /dev/null and b/examples/images/javascript-sensors-viewer-stream-test.png differ

ADD
examples/images/sensor-graph.png
examples/images/sensor-graph.png
Binary files /dev/null and b/examples/images/sensor-graph.png differ

ADD
examples/images/sensors-viewer-stream-test.png
examples/images/sensors-viewer-stream-test.png
Binary files /dev/null and b/examples/images/sensors-viewer-stream-test.png differ

Add images for javascript examples

Add screenshots of sample usage for javascript examples.

Signed-off-by: Davide Briani <davide.briani@ispirata.com>