v1.8.0: source included

Adds a --source flag that prints out the tool’s own source files.

v1.7.0: Faster, smaller, easier to build

- Remove dependency on OpenSSL
- Change the inspect output format to:
  * Show more of the subject/issuer names
  * Show the names of certificates in the chain, for remotes
  * Show whether the certificate analysed was local or remote
  * Show an openssl oneliner to get more details
- Support Ed25519 keys
- Add an --ecdsa flag for future-proofing

The upside is that certificate generation for elliptical is faster (by
about 20%), binary size is reduced (by about 33%), and less memory is
used (by about %15).

The downside is that build times are slower (by about 30%), and RSA
generation is very slow (several orders of magnitude!)

1.6.2

1.6.1

1.6.0

1.5.0

1.4.0

1.3.0

1.2.2

1.2.1