Added sqlite database

internal/database/sqlite.go

@@ -0,0 +1,23 @@
+package database
+
+import (
+	"database/sql"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+func ConnectSQLite(dbPath string) (*sql.DB, error) {
+	db, err := sql.Open("sqlite3", dbPath+"?_busy_timeout=5000&_journal_mode=WAL")
+	if err != nil {
+		return nil, err
+	}
+
+	// SQLite doesn't like multiple connections
+	db.SetMaxOpenConns(1)
+
+	if err = db.Ping(); err != nil {
+		return nil, err
+	}
+
+	return db, nil
+}