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/target.mk

@@ -15,5 +15,8 @@ LDFLAGS += -pthread
 CFLAGS += -I$(TARGET_DIR)/fatfs
 C_SOURCES += $(TARGET_DIR)/fatfs/syscall.c
 
+# memory manager
+C_SOURCES += $(TARGET_DIR)/Src/heap_4.c
+
 run: all
 	$(OBJ_DIR)/$(PROJECT).elf