Open source contributor agreement

[ta-daa]

Examples of CLA's here:

• https://www.apache.org/licenses/icla.pdf
• https://www.docracy.com/0pmrhl5zsdf/individual-contributor-license-agreement-template-cla
• https://opensourcehacker.com/2010/08/24/open-source-contribution-agreement-template/

Food for thought: do we actually need one:

• https://opensource.guide/legal/#does-my-project-need-an-additional-contributor-agreement
• https://ben.balter.com/2018/01/02/why-you-probably-shouldnt-add-a-cla-to-your-open-source-project/