Furi: core refactoring and CMSIS removal part 2 (#1410)

* Furi: rename and move core
* Furi: drop CMSIS_OS header and unused api, partially refactor and cleanup the rest
* Furi: CMSIS_OS drop and refactoring.
* Furi: refactoring, remove cmsis legacy
* Furi: fix incorrect assert on queue deallocation, cleanup timer
* Furi: improve delay api, get rid of floats
* hal: dropped furi_hal_crc
* Furi: move DWT based delay to cortex HAL
* Furi: update core documentation

Co-authored-by: hedger <hedger@nanode.su>

furi/furi.h

@@ -0,0 +1,37 @@
+#pragma once
+
+#include <stdlib.h>
+
+#include <core/check.h>
+#include <core/common_defines.h>
+#include <core/event_flag.h>
+#include <core/kernel.h>
+#include <core/log.h>
+#include <core/memmgr.h>
+#include <core/memmgr_heap.h>
+#include <core/message_queue.h>
+#include <core/mutex.h>
+#include <core/pubsub.h>
+#include <core/record.h>
+#include <core/semaphore.h>
+#include <core/stdglue.h>
+#include <core/thread.h>
+#include <core/timer.h>
+#include <core/valuemutex.h>
+
+#include <furi_hal_gpio.h>
+
+// FreeRTOS timer, REMOVE AFTER REFACTORING
+#include <timers.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void furi_init();
+
+void furi_run();
+
+#ifdef __cplusplus
+}
+#endif