toolkit: add CSAF type and helper methods

Adding the ability to reason with CSAF data and some methods
to trawl through the objects.

Signed-off-by: crozzy <[email protected]>

toolkit/types/csaf/csaf_test.go

@@ -9,14 +9,22 @@ import (
 func TestParse(t *testing.T) {
 	f, err := os.Open("testdata/cve-2021-0084.json")
 	if err != nil {
+<<<<<<< HEAD
 		t.Fatalf("failed to open test data: %v", err)
+=======
+		t.Fatalf("failed to open test data: %v %v", path, err)
+>>>>>>> a8136c5e (toolkit: add CSAF type and helper methods)
 	}
 	defer f.Close()
 	b, err := io.ReadAll(f)
 	if err != nil {
 		t.Fatalf("got an error reading file bytes: %v", err)
 	}
+<<<<<<< HEAD
 	_, err = Parse(b)
+=======
+	_, err = ParseCSAF(b)
+>>>>>>> a8136c5e (toolkit: add CSAF type and helper methods)
 	if err != nil {
 		t.Fatalf("failed to parse CSAF JSON: %v", err)
 	}