feat(train): add new command to interact with aws and train models

vendor/github.com/aws/smithy-go/transport/http/time.go

@@ -0,0 +1,13 @@
+package http
+
+import (
+	"time"
+
+	smithytime "github.com/aws/smithy-go/time"
+)
+
+// ParseTime parses a time string like the HTTP Date header. This uses a more
+// relaxed rule set for date parsing compared to the standard library.
+func ParseTime(text string) (t time.Time, err error) {
+	return smithytime.ParseHTTPDate(text)
+}