default security file

[jthegedus]

Is your feature request related to a problem? Please describe.

Most plugins do not offer any form of security guarantee. Most authors probably haven't considered adding one. A default file in their repo would force authors to address this.

Describe the solution you'd like

Each plugin either

a. explicitly offers a security guarantee
b. explicitly does not offer a security guarantee

Adding a default to this template would make authors consider their position

Describe alternatives you've considered

Increase awareness of asdf consumers of their security responsibilities/due diligence.

Additional context