rebase: vendor files required for kmip

Signed-off-by: Rakshith R <rar@redhat.com>

vendor/github.com/gemalto/flume/context.go

@@ -0,0 +1,27 @@
+package flume
+
+import (
+	"context"
+)
+
+// DefaultLogger is returned by FromContext if no other logger has been
+// injected into the context.
+var DefaultLogger = New("")
+
+type ctxKey struct{}
+
+var loggerKey = &ctxKey{}
+
+// WithLogger returns a new context with the specified logger injected into it.
+func WithLogger(ctx context.Context, l Logger) context.Context {
+	return context.WithValue(ctx, loggerKey, l)
+}
+
+// FromContext returns a logger from the context.  If the context
+// doesn't contain a logger, the DefaultLogger will be returned.
+func FromContext(ctx context.Context) Logger {
+	if l, ok := ctx.Value(loggerKey).(Logger); ok {
+		return l
+	}
+	return DefaultLogger
+}