add options for fftw3 precisions

configureFromFullPathDevice for all devices now trim() components

libs/main/io_devices/pispi.cpp

@@ -187,7 +187,7 @@ PIString PISPI::constructFullPathDevice() const {
 void PISPI::configureFromFullPathDevice(const PIString & full_path) {
 	PIStringList pl = full_path.split(":");
 	for (int i = 0; i < pl.size_s(); ++i) {
-		PIString p(pl[i]);
+		PIString p(pl[i].trimmed());
 		switch (i) {
 		case 0: setPath(p); break;
 		case 1: setSpeed(p.toInt()); break;