Speedup SD card & enlarge your RAM. (#1649)

* FuriHal: sram2 memory manager
* FuriHal: sram2 memory allocator
* FuriHal: allow NULL buffers for txrx in spi hal
* SD card: sector cache
* FuriHal: fix init in memory hal
* RPC: STARTUP instead SERVICE
* Memory: pool "free" command
* Thread: service can be statically allocated in a memory pool

Co-authored-by: あく <alleteam@gmail.com>

applications/cli/cli_commands.c

@@ -281,6 +281,9 @@ void cli_command_free(Cli* cli, string_t args, void* context) {
     printf("Total heap size: %d\r\n", memmgr_get_total_heap());
     printf("Minimum heap size: %d\r\n", memmgr_get_minimum_free_heap());
     printf("Maximum heap block: %d\r\n", memmgr_heap_get_max_free_block());
+
+    printf("Pool free: %d\r\n", memmgr_pool_get_free());
+    printf("Maximum pool block: %d\r\n", memmgr_pool_get_max_block());
 }
 
 void cli_command_free_blocks(Cli* cli, string_t args, void* context) {