Refactor progress bar & summary line logic

* Centralize the logic about whether to print the progress bar or not in
  the `*_PROGRESS()` macros.
* Centralize the logc about whether to print the summary line or not in
  `FIO_shouldDisplayFileSummary()` and
  `FIO_shouldDisplayMultipleFileSummary()`.
* Make `--progress` work for non-zstd (de)compressors.
* Clean up several edge cases in compression and decompression progress
  printing along the way. E.g. wrong log level, or missing summary line.

One thing I don't like about stdout mode, which sets the display level
to 1, is that warnings aren't displayed. After this PR, we could change
stdout mode from lowering the display level, to defaulting to implied
`--no-progress`. But, I think that deserves a separate PR.

programs/fileio_common.h

@@ -48,6 +48,14 @@ extern UTIL_time_t g_displayClock;
                 if (g_display_prefs.displayLevel>=4) fflush(stderr);       \
     }   }   }
 
+#define SHOULD_DISPLAY_SUMMARY() \
+    (g_display_prefs.displayLevel >= 2 || g_display_prefs.progressSetting == FIO_ps_always)
+#define SHOULD_DISPLAY_PROGRESS()                       \
+    (g_display_prefs.progressSetting != FIO_ps_never && SHOULD_DISPLAY_SUMMARY())
+#define DISPLAY_PROGRESS(...) { if (SHOULD_DISPLAY_PROGRESS()) { DISPLAYLEVEL(1, __VA_ARGS__); }}
+#define DISPLAYUPDATE_PROGRESS(...) { if (SHOULD_DISPLAY_PROGRESS()) { DISPLAYUPDATE(1, __VA_ARGS__); }}
+#define DISPLAY_SUMMARY(...) { if (SHOULD_DISPLAY_SUMMARY()) { DISPLAYLEVEL(1, __VA_ARGS__); } }
+
 #undef MIN  /* in case it would be already defined */
 #define MIN(a,b)    ((a) < (b) ? (a) : (b))