fips.go

[gabrielrussell]

This is close to the fips.go file that we use. The only difference is that we don't compile this on osx via a patch that looks like:

diff --git a/fips.go b/fips.go
index df0a9c0..cc463f1 100644
--- a/fips.go
+++ b/fips.go
@@ -1,4 +1,5 @@
 // +build cgo
+// +build -darwin

 package openssl

[kujenga]

Any progress getting that fix in?