furi_check - a new way to asserting (#204)

* hal-related task_is_isr_context function
* furi_check implementation
* change application to use furi_check
* add second level of assertion
* add TODO about ISR context
* Applications: refactor furi_check and furi_assert.
* Apploader: propwer widget usage. Menu: check on furi resource request.
* refactor furi_check

Co-authored-by: Aleksandr Kutuzov <aku@plooks.com>
Co-authored-by: coreglitch <mail@s3f.ru>

applications/app-loader/app-loader.c

@@ -51,13 +51,12 @@ static void handle_menu(void* _ctx) {
 
 void app_loader(void* p) {
     osThreadId_t self_id = osThreadGetId();
-    assert(self_id);
+    furi_check(self_id);
 
     AppLoaderState state;
     state.handler = NULL;
 
     state.widget = widget_alloc();
-    assert(state.widget);
     widget_enabled_set(state.widget, false);
     widget_draw_callback_set(state.widget, render_callback, &state);
     widget_input_callback_set(state.widget, input_callback, &state);