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/code/picodeinfo.cpp

@@ -23,14 +23,14 @@
 
 
 PIString PICodeInfo::EnumInfo::memberName(int value_) const {
-	piForeachC(PICodeInfo::EnumeratorInfo & e, members)
+	for (const auto & e: members)
 		if (e.value == value_) return e.name.toString();
 	return PIString();
 }
 
 
 int PICodeInfo::EnumInfo::memberValue(const PIString & name_) const {
-	piForeachC(PICodeInfo::EnumeratorInfo & e, members)
+	for (const auto & e: members)
 		if (e.name.toString() == name_) return e.value;
 	return -1;
 }