Fix handling of CSV input in optimize script.

I think this did not work before.

schedgen/schedgen-optimize.py

@@ -11,6 +11,7 @@ from schedgen.opt.schedule import (
 from schedgen.opt.order import OptimizeOrder
 from schedgen.opt.helper import message, file_or_dir_path, new_file_path, file_path
 from schedgen.parsers.gridtpt import GridTPT
+from schedgen.parsers.csvresult import CSVResult
 
 args_parser = argparse.ArgumentParser(
     description="Find an optimal schedule from a set of bechmarks."
@@ -215,13 +216,19 @@ if __name__ == "__main__":
     time_slices = args.slices
     time_slices.sort()
     message(f"Time slices: {time_slices}", logics)
-    experiments = list(args.data.glob("**/*.txt"))
-    message(f"Found {len(experiments)} .txt files.", logics)
+    if not args.csv:
+        experiments = list(args.data.glob("**/*.txt"))
+        message(f"Found {len(experiments)} .txt files.", logics)
 
     if "all" in logics:
-        r = GridTPT(args.data)
+        filter = None
     else:
-        r = GridTPT(args.data, logics)
+        filter = logics
+
+    if args.csv:
+        r = CSVResult(args.data, filter)
+    else:
+        r = GridTPT(args.data, filter)
     exps = r.frame.copy()
 
     pre_schedule = None