chore: Define the SecretsStore interface, basically a thin wrapper on top of bbolt.

pkg/secretsstore/bbolt_store.go

@@ -0,0 +1,20 @@
+package secretsstore
+
+// bboltStore implements the SecretsStore interface on top of a bbolt bucket.
+type bboltStore struct {
+}
+
+func (s *bboltStore) Get(key Key) ([]byte, error) {
+	// TODO
+	return nil, nil
+}
+
+func (s *bboltStore) Put(key Key, val []byte) error {
+	// TODO
+	return nil
+}
+
+func (s *bboltStore) Delete(key Key) error {
+	// TODO
+	return nil
+}