version 2.93 ready to master

remove PIString << operators

libs/main/resources/piresources.cpp

@@ -43,7 +43,7 @@ void PIResources::dump() {
 		auto fi = si.value()->entries.makeIterator();
 		while (fi.next()) {
 			PIString s = fi.key() + ": ";
-			s << (fi.value() ? fi.value()->size_s() : 0) << " b";
+			s += PIString::fromNumber(fi.value() ? fi.value()->size_s() : 0) + " b";
 			piCout << "   " << s;
 		}
 	}