Jumbotron updates to https://www.eclipse.org/org/research/

Created by: ChristieWittEclipse

Please make the following updates to https://www.eclipse.org/org/research/ (Mockup is attached):

-Add text in jumbotron header "Upcoming Conference: Eclipse SAM IoT 2020" -Add button in jumbotron header "Download call for papers" with a link to https://events.eclipse.org/2020/sam-iot/sam-iot-cfp.pdf -Update the Jumbotron background image to https://www.eclipse.org/eclipse.org-common/themes/solstice/public/images/vendor/eclipsefdn-solstice-components/landing-well/eclipse_home_bg.jpg