Version 0.0.2

Removed all but one shell dependencies

One dependency left which will probably remain to ensure file formats moving forward "ssh-keygen" is called directly.

Major stumbling block to make this native dart is dart cannot change file permissions without using the Posix interface which is more risky than running ssh-keygen directly which ensures file permissions on the private keys correctly.

Full Changelog: v0.0.1...v0.0.2