Add some missing wrappers (#1139)

* Add some missing wrappers:

sqlite3_value_subtype
sqlite3_result_subtype
sqlite3_changes64
sqlite3_db_readonly
sqlite3_txn_state
sqlite3_stmt_isexplain
sqlite3_vtab_config
sqlite3_index_info.idxFlags
sqlite3_index_info.colUsed
sqlite3_index_info.idxStr
sqlite3_vtab_collation

* Mark series VTab as innocuous and csv as direct only

src/hooks.rs

@@ -285,7 +285,7 @@ impl<'c> AuthAction<'c> {
                 operation: TransactionOperation::from_str(operation_str),
                 savepoint_name,
             },
-            #[cfg(feature = "modern_sqlite")]
+            #[cfg(feature = "modern_sqlite")] // 3.8.3
             (ffi::SQLITE_RECURSIVE, ..) => Self::Recursive,
             (code, arg1, arg2) => Self::Unknown { code, arg1, arg2 },
         }