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/core/semaphore.h

@@ -0,0 +1,58 @@
+/**
+ * @file semaphore.h
+ * FuriSemaphore
+ */
+#pragma once
+
+#include "base.h"
+#include "thread.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef void FuriSemaphore;
+
+/** Allocate semaphore
+ *
+ * @param[in]  max_count      The maximum count
+ * @param[in]  initial_count  The initial count
+ *
+ * @return     pointer to FuriSemaphore instance
+ */
+FuriSemaphore* furi_semaphore_alloc(uint32_t max_count, uint32_t initial_count);
+
+/** Free semaphore
+ *
+ * @param      instance  The pointer to FuriSemaphore instance
+ */
+void furi_semaphore_free(FuriSemaphore* instance);
+
+/** Acquire semaphore
+ *
+ * @param      instance  The pointer to FuriSemaphore instance
+ * @param[in]  timeout   The timeout
+ *
+ * @return     The furi status.
+ */
+FuriStatus furi_semaphore_acquire(FuriSemaphore* instance, uint32_t timeout);
+
+/** Release semaphore
+ *
+ * @param      instance  The pointer to FuriSemaphore instance
+ *
+ * @return     The furi status.
+ */
+FuriStatus furi_semaphore_release(FuriSemaphore* instance);
+
+/** Get semaphore count
+ *
+ * @param      instance  The pointer to FuriSemaphore instance
+ *
+ * @return     Semaphore count
+ */
+uint32_t furi_semaphore_get_count(FuriSemaphore* instance);
+
+#ifdef __cplusplus
+}
+#endif