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>

furi/core/memmgr.c

@@ -1,6 +1,7 @@
 #include "memmgr.h"
 #include "common_defines.h"
 #include <string.h>
+#include <furi_hal_memory.h>
 
 extern void* pvPortMalloc(size_t xSize);
 extern void vPortFree(void* pv);
@@ -77,3 +78,18 @@ void* __wrap__realloc_r(struct _reent* r, void* ptr, size_t size) {
     UNUSED(r);
     return realloc(ptr, size);
 }
+
+void* memmgr_alloc_from_pool(size_t size) {
+    void* p = furi_hal_memory_alloc(size);
+    if(p == NULL) p = malloc(size);
+
+    return p;
+}
+
+size_t memmgr_pool_get_free(void) {
+    return furi_hal_memory_get_free();
+}
+
+size_t memmgr_pool_get_max_block(void) {
+    return furi_hal_memory_max_pool_block();
+}