Database basic CRUD (#27)

* started schema

* db schemas beginning

* first db schema gen

* added sqlc generation with go generate and sqlite driver

* i think these dependencies are needed

* added IF NOT EXISTS to create and CRUD for each table

* fixed missing columns

* added missing field

* fixed code generation with sqlc

backend/database/sql/queries/recordings.sql

@@ -0,0 +1,17 @@
+-- name: CreateRecording :one
+INSERT INTO recordings (name) VALUES (?)
+RETURNING *;
+
+-- name: GetRecording :one
+SELECT * FROM recordings 
+WHERE id = ? LIMIT 1;
+
+-- name: UpdateRecording :exec
+UPDATE recordings 
+SET name = ?
+WHERE id =?;
+
+-- name: DeleteRecording :exec
+DELETE FROM recordings 
+WHERE id =?;
+