[FEAT MERGE] Lob SQL refactoring (Mem-LobLocator, expressions and dbms_lob adaptions)

Co-authored-by: chaser-ch <chaser.ch@antgroup.com>

unittest/storage/test_lob_seq_id.cpp

@@ -55,7 +55,7 @@ static void make_seq_id(ObIAllocator* alloc, uint32_t dig_size, char*& seq_buf,
 
   for (int i = 0; i < dig_size; i++) {
     digits[i] = random();
-    (void)store32be(seq_buf + offset, digits[i]);
+    (void)ObLobSeqId::store32be(seq_buf + offset, digits[i]);
     offset += sizeof(uint32_t);
   }