feat: Support for SQLite backend

backends/sqlite/migrations/1_create_db_tables.up.sql

@@ -0,0 +1,29 @@
+CREATE TABLE neoq_jobs (
+	id integer primary key not null,
+    fingerprint text not null unique,
+    queue text,
+    status text default "new",
+    payload text,
+    retries integer default 0,
+    max_retries integer default 3,
+    run_after datetime default CURRENT_TIMESTAMP,    
+    deadline datetime,
+    ran_at datetime,
+    created_at datetime default CURRENT_TIMESTAMP,
+    error text
+);
+
+CREATE TABLE neoq_dead_jobs (
+	id integer primary key not null,
+    fingerprint text not null,
+    queue text,
+    status text default "failed",
+    payload text,
+    retries integer,
+    max_retries integer,
+    run_after datetime default CURRENT_TIMESTAMP,    
+    deadline datetime,
+    ran_at datetime,
+    created_at datetime default CURRENT_TIMESTAMP,
+    error text
+);