Add `NewCredentialSSHKeyFromSigner` (#706)

This change adds `NewCredentialSSHKeyFromSigner`, which allows idiomatic
use of SSH keys from Go. This also lets us spin off an SSH server in the
tests.

1 files changed, 5 insertions, 1 deletions

diff --git a/go.mod b/go.mod
index 42cdb9d..df3b1fb 100644
--- a/go.mod
+++ b/go.mod
@@ -2,4 +2,8 @@ module github.com/libgit2/git2go/v31
 
 go 1.13
 
-require golang.org/x/crypto v0.0.0-20200728195943-123391ffb6de
+require (
+	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510
+	golang.org/x/crypto v0.0.0-20201203163018-be400aefbc4c
+	golang.org/x/sys v0.0.0-20201204225414-ed752295db88 // indirect
+)