Add OpenVPCal - Githubissues

Please check each of these after submitting your pull request:

[x] Are you including a repo_url? You need to pick the single best GitHub repository for your project, not a GitHub organization.
[x] Is your project open source?
[x] Has this project been used successfully in the production of a film, television program, animated content or other projects within the scope of the ASWF. Was it designed specifically for the entertainment industry?
[x] Is the project currently and actively maintained (e.g., accepts pull requests, replies to issues, has been tested against / builds properly with the compilers for this year's VFX platform)?
[x] Have you picked the single best (existing) category for your project?
[x] Does it follow the other guidelines from the new entries section?
[x] Have you added the SVG for your logo to hosted_logos and referenced it in the entry in landscape.yml?
[x] Does your logo clearly state the name of the project/product and follow the other logo guidelines?
[x] Does your project name match the text on the logo?
[x] Have you verified that the Crunchbase data for your organization is correct (including headquarters and LinkedIn)?
[x] ~5 minutes after opening the pull request, the CNCF-Bot will post the URL for your staging server. Have you confirmed that it looks good to you and then added a comment to the PR saying "LGTM"?

Closes #715

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AcademySoftwareFoundation / aswf-landscape