Add icons for accessible and open access publications in the program

[dylancashman]

From Dominik, accessibility chair, over email on June 5th:

Dear web,

We are asking authors to indicate whether they made their papers accessible and whether it’s open access and would love to show this on the website/the virtual program (similar to how CHI does it as shown below). Can you pull the information from the submissions and then show it on the website? If you want an icon, we can use a screen reader icon (something like https://thenounproject.com/browse/icons/term/screen-reader/). Happy to talk about the details of the design or wording.

Thank you,
Dominik