Move a lot of stuff + tidy stuff (#37)

Lots of renaming and moving stuff, some bug fixes, more lenient parsing of notifications and home timeline.

internal/blob/storage.go

@@ -0,0 +1,29 @@
+/*
+   GoToSocial
+   Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
+
+   This program is free software: you can redistribute it and/or modify
+   it under the terms of the GNU Affero General Public License as published by
+   the Free Software Foundation, either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU Affero General Public License for more details.
+
+   You should have received a copy of the GNU Affero General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+package blob
+
+// Storage is an interface for storing and retrieving blobs
+// such as images, videos, and any other attachments/documents
+// that shouldn't be stored in a database.
+type Storage interface {
+	StoreFileAt(path string, data []byte) error
+	RetrieveFileFrom(path string) ([]byte, error)
+	ListKeys() ([]string, error)
+	RemoveFileAt(path string) error
+}