[FL-3081] fbt: removed DEBUG_TOOLS & FAP_EXAMPLES flags (#2291)

* fbt: deprecated DEBUG_TOOLS & FAP_EXAMPLES flags
* fixes for PVS warnings
* scripts: fbt: fixed leaking PYTHONHOME

applications/debug/accessor/accessor_app.cpp

@@ -31,7 +31,8 @@ void AccessorApp::run(void) {
     onewire_host_stop(onewire_host);
 }
 
-AccessorApp::AccessorApp() {
+AccessorApp::AccessorApp()
+    : text_store{0} {
     notification = static_cast<NotificationApp*>(furi_record_open(RECORD_NOTIFICATION));
     onewire_host = onewire_host_alloc();
     furi_hal_power_enable_otg();

applications/debug/accessor/helpers/wiegand.cpp

@@ -171,9 +171,6 @@ bool WIEGAND::DoWiegandConversion() {
                     return true;
                 } else {
                     _lastWiegand = sysTick;
-                    _bitCount = 0;
-                    _cardTemp = 0;
-                    _cardTempHigh = 0;
                     return false;
                 }