pageinspect: Make page test more portable

Choose test data that makes the output independent of endianness.

contrib/pageinspect/expected/page.out

 CREATE EXTENSION pageinspect;
-CREATE TABLE test1 (a int, b text);
-INSERT INTO test1 VALUES (1, 'one');
+CREATE TABLE test1 (a int, b int);
+INSERT INTO test1 VALUES (16777217, 131584);
 VACUUM test1;  -- set up FSM
 -- The page contents can vary, so just test that it can be read
 -- successfully, but don't keep the output.
@@ -47,7 +47,7 @@ SELECT tuple_data_split('test1'::regclass, t_data, t_infomask, t_infomask2, t_bi
     FROM heap_page_items(get_raw_page('test1', 0));
        tuple_data_split        
 -------------------------------
- {"\\x01000000","\\x096f6e65"}
+ {"\\x01000001","\\x00020200"}
 (1 row)
 
 SELECT * FROM fsm_page_contents(get_raw_page('test1', 'fsm', 0));

contrib/pageinspect/sql/page.sql

 CREATE EXTENSION pageinspect;
 
-CREATE TABLE test1 (a int, b text);
-INSERT INTO test1 VALUES (1, 'one');
+CREATE TABLE test1 (a int, b int);
+INSERT INTO test1 VALUES (16777217, 131584);
 
 VACUUM test1;  -- set up FSM