get rid of piForeach

apply some code analyzer recommendations
ICU flag now check if libicu exists
prepare for more accurate growth of containers (limited PoT, then constantly increase size)

libs/main/application/pisystemmonitor.cpp

@@ -181,14 +181,14 @@ void PISystemMonitor::run() {
 	__PIThreadCollection * pitc = __PIThreadCollection::instance();
 	pitc->lock();
 	PIVector<PIThread *> tv = pitc->threads();
-	piForeach(PIThread * t, tv)
+	for (auto * t: tv)
 		if (t->isPIObject()) tbid[t->tid()] = t->name();
 	pitc->unlock();
 	// piCout << tbid.keys().toType<uint>();
 	ProcessStats tstat;
 	tstat.ID = pID_;
 #ifdef MICRO_PIP
-	piForeach(PIThread * t, tv)
+	for (auto * t: tv)
 		if (t->isPIObject()) gatherThread(t->tid());
 #else
 #  ifndef WINDOWS
@@ -260,7 +260,7 @@ void PISystemMonitor::run() {
 	tstat.physical_memsize         = tstat.resident_memsize - tstat.share_memsize;
 
 	PIVector<PIFile::FileInfo> tld = PIDir(PRIVATE->proc_dir + "task").entries();
-	piForeachC(PIFile::FileInfo & i, tld) {
+	for (const auto & i: tld) {
 		if (i.flags[PIFile::FileInfo::Dot] || i.flags[PIFile::FileInfo::DotDot]) continue;
 		gatherThread(i.name().toInt());
 	}