Implement ValueManager and ValueComposer (#183)

* Fix ValueManager implementation
* Implement ValueComposer
* Add constructor for ValueManager
* Add value-expanders.h to flipper_v2.h set
* Move COPY_COMPOSE body into a .c file
* Add test for ValueManager
* Add destructors for ValueMutex, ValueManager and ValueComposer
* Use destructors in tests
* Move composition logic into perform_compose()
* Add docs for perform_compose()
* Add test for ValueComposer
* Replace atomic_bool with bool as g++ compiler doesn't support C11 atomics
* Add Event type
* Add semaphore support to the local target
* Add test for Event
* Update input records and relevant examples
* Rename Event to AppEvent in the cc1101-workaround example
* Rename Event to AppEvent in the irda example
* Use Event in ValueComposer to wait for update request
* Add perform_compose_internal() function
* fix Event/AppEvent

Co-authored-by: aanper <mail@s3f.ru>

applications/tests/furi_event_test.c

@@ -0,0 +1,30 @@
+#include "flipper_v2.h"
+#include "minunit.h"
+
+static void furi_concurent_app(void* p) {
+    Event* event = p;
+
+    signal_event(event);
+
+    furiac_exit(NULL);
+}
+
+void test_furi_event() {
+    Event event;
+
+    mu_check(init_event(&event));
+
+    // The event should not be signalled right after creation
+    mu_check(!wait_event_with_timeout(&event, 100));
+
+    // Create second app
+    FuriApp* second_app = furiac_start(furi_concurent_app, "furi concurent app", (void*)&event);
+
+    // The event should be signalled now
+    mu_check(wait_event_with_timeout(&event, 100));
+
+    // The event should not be signalled once it's processed
+    mu_check(!wait_event_with_timeout(&event, 100));
+
+    mu_check(delete_event(&event));
+}