s2n-tls-hyper stability considerations

[goatgoose]

Problem:

Before releasing a stable version of the s2n-tls-hyper crate, we should consider the following items.

• Is there any compatibility layer we should own in s2n-tls-hyper to support using s2n-tls with hyper servers?
  • If so, we should consider resolving Add feature to disable support for SSLv2 formatted client hellos #4988 and enabling this by default in the server compatibility layer.

Solution

Address the listed items before releasing a stable version of s2n-tls-hyper.