furi memory managment (#177)

* memory managment calls now forwarded to freertos heap

* memory managment tests

* local target test compability

* rename heap.c file to heap_4.c for local target and explicity init heap in single thread context

* rebase BlockLink_t struct

* check mutex in local heap

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

firmware/targets/local/fatfs/heap.h

@@ -0,0 +1,37 @@
+#include <stdbool.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <cmsis_os.h>
+
+#define configTOTAL_HEAP_SIZE ((size_t)(8192 * 16))
+#define configAPPLICATION_ALLOCATED_HEAP 0
+#define portBYTE_ALIGNMENT 8
+
+#if portBYTE_ALIGNMENT == 8
+#define portBYTE_ALIGNMENT_MASK (0x0007)
+#endif
+
+/* No test marker by default. */
+#ifndef mtCOVERAGE_TEST_MARKER
+#define mtCOVERAGE_TEST_MARKER()
+#endif
+
+/* No tracing by default. */
+#ifndef traceMALLOC
+#define traceMALLOC(pvReturn, xWantedSize)
+#endif
+
+/* No tracing by default. */
+#ifndef traceFREE
+#define traceFREE(pvReturn, xBlockSize)
+#endif
+
+/* No assert by default. */
+#ifndef configASSERT
+#define configASSERT(var)
+#endif
+
+bool prvHeapInit(void);
+
+void acquire_memalloc_mutex();
+void release_memalloc_mutex();