feat: added optional profiling

internal/config/parse_from_args.go

@@ -10,6 +10,7 @@ func FromArgs() (*Config, error) {
 	// Parse flags.
 	verbose := flag.Bool("v", false, "Verbosity. If set, the program will print logs.")
 	explanation := flag.Bool("x", false, "Explanation. Whether or not to show all reduction steps.")
+	profile := flag.String("p", "", "CPU profiling. If set, the program will run a performance profile during execution.")
 	flag.Parse()
 
 	// Parse non-flag arguments.
@@ -31,5 +32,6 @@ func FromArgs() (*Config, error) {
 		Source:      source,
 		Verbose:     *verbose,
 		Explanation: *explanation,
+		Profile:     *profile,
 	}, nil
 }