[FL-140] Core api dynamic records (#296)

* SYSTEM: tickless mode with deep sleep.
* Move FreeRTOS ticks to lptim2
* API: move all sumbodules init routines to one place. Timebase: working lptim2 at tick source.
* API Timebase: lp-timer routines, timer access safe zones prediction and synchronization. FreeRTOS: adjust configuration for tickless mode.
* NFC: support for tickless mode.
* API Timebase: improve tick error handling in IRQ. Apploader: use insomnia mode to run applications.
* BLE: prevent sleep while core2 starting
* HAL: nap while in insomnia mode
* init records work
* try to implement record delete
* tests and flapp
* flapp subsystem
* new core functions to get app stat, simplify core code
* fix thread termination
* add strdup to core
* fix tests
* Refactoring: remove all unusued parts, update API usage, aggreagate API sources and headers, new record storage
* Refactoring: update furi record api usage, cleanup code
* Fix broken merge for freertos apps
* Core, Target: fix compilation warnings
* Drop firmware target local
* HAL Timebase, Power, Clock: semaphore guarded access to clock and power modes, better sleep mode.
* SD-Filesystem: wait for all deps to arrive before adding widget. Core, BLE: disable debug dump to serial.
* delete old app example-ipc
* delete old app fatfs list
* fix strobe app, add input header
* delete old display driver
* comment old app qr-code
* fix sd-card test, add forced widget update
* remove unused new core test
* increase heap to 128k
* comment and assert old core tests
* fix syntax

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

core/furi/pubsub.h

@@ -0,0 +1,95 @@
+#pragma once
+
+#include "cmsis_os.h"
+#include "m-list.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+== PubSub ==
+
+PubSub allows users to subscribe on notifies and notify subscribers.
+Notifier side can pass `void*` arg to subscriber callback,
+and also subscriber can set `void*` context pointer that pass into
+callback (you can see callback signature below).
+*/
+
+typedef void (*PubSubCallback)(const void*, void*);
+typedef struct PubSubType PubSub;
+
+typedef struct {
+    PubSubCallback cb;
+    void* ctx;
+    PubSub* self;
+} PubSubItem;
+
+LIST_DEF(list_pubsub_cb, PubSubItem, M_POD_OPLIST);
+
+struct PubSubType {
+    list_pubsub_cb_t items;
+    osMutexId_t mutex;
+};
+
+/*
+To create PubSub you should create PubSub instance and call `init_pubsub`.
+*/
+bool init_pubsub(PubSub* pubsub);
+
+/*
+Since we use dynamic memory - we must explicity delete pubsub
+*/
+bool delete_pubsub(PubSub* pubsub);
+
+/*
+Use `subscribe_pubsub` to register your callback.
+*/
+PubSubItem* subscribe_pubsub(PubSub* pubsub, PubSubCallback cb, void* ctx);
+
+/*
+Use `unsubscribe_pubsub` to unregister callback.
+*/
+bool unsubscribe_pubsub(PubSubItem* pubsub_id);
+
+/*
+Use `notify_pubsub` to notify subscribers.
+*/
+bool notify_pubsub(PubSub* pubsub, void* arg);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*
+
+```C
+// MANIFEST
+// name="test"
+// stack=128
+
+void example_pubsub_handler(void* arg, void* ctx) {
+    printf("get %d from %s\n", *(uint32_t*)arg, (const char*)ctx);
+}
+
+void pubsub_test() {
+    const char* app_name = "test app";
+
+    PubSub example_pubsub;
+    init_pubsub(&example_pubsub);
+
+    if(!subscribe_pubsub(&example_pubsub, example_pubsub_handler, (void*)app_name)) {
+        printf("critical error\n");
+        flapp_exit(NULL);
+    }
+
+    uint32_t counter = 0;
+    while(1) {
+        notify_pubsub(&example_pubsub, (void*)&counter);
+        counter++;
+
+        osDelay(100);
+    }
+}
+```
+*/