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/mutex.h

@@ -0,0 +1,62 @@
+/**
+ * @file mutex.h
+ * FuriMutex
+ */
+#pragma once
+
+#include "base.h"
+#include "thread.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    FuriMutexTypeNormal,
+    FuriMutexTypeRecursive,
+} FuriMutexType;
+
+typedef void FuriMutex;
+
+/** Allocate FuriMutex
+ *
+ * @param[in]  type  The mutex type
+ *
+ * @return     pointer to FuriMutex instance
+ */
+FuriMutex* furi_mutex_alloc(FuriMutexType type);
+
+/** Free FuriMutex
+ *
+ * @param      instance  The pointer to FuriMutex instance
+ */
+void furi_mutex_free(FuriMutex* instance);
+
+/** Acquire mutex
+ *
+ * @param      instance  The pointer to FuriMutex instance
+ * @param[in]  timeout   The timeout
+ *
+ * @return     The furi status.
+ */
+FuriStatus furi_mutex_acquire(FuriMutex* instance, uint32_t timeout);
+
+/** Release mutex
+ *
+ * @param      instance  The pointer to FuriMutex instance
+ *
+ * @return     The furi status.
+ */
+FuriStatus furi_mutex_release(FuriMutex* instance);
+
+/** Get mutex owner thread id
+ *
+ * @param      instance  The pointer to FuriMutex instance
+ *
+ * @return     The furi thread identifier.
+ */
+FuriThreadId furi_mutex_get_owner(FuriMutex* instance);
+
+#ifdef __cplusplus
+}
+#endif