Add compat package that register driver as sqlite3

Author: Fabianexe

compat/compat.go

@@ -0,0 +1,7 @@
+package compat
+
+import "github.com/glebarez/go-sqlite"
+
+func init() {
+	sqlite.RegisterAsSQLITE3()
+}

sqlite.go

@@ -1741,3 +1741,7 @@ func registerScalarFunction(
 
 	return nil
 }
+
+func RegisterAsSQLITE3() {
+	sql.Register("sqlite3", newDriver())
+}