Fix repeatedly initialize shared memory data and protect the memory's fields (#2673)

Avoid repeatedly initializing the shared memory data when creating the child
thread in lib-pthread or lib-wasi-threads.

Add shared memory lock when accessing some fields of the memory instance
if the memory instance is shared.

Init shared memory's memory_data_size/memory_data_end fields according to
the current page count but not max page count.

Add wasm_runtime_set_mem_bound_check_bytes, and refine the error message
when shared memory flag is found but the feature isn't enabled.

core/iwasm/common/wasm_memory.h

@@ -24,6 +24,10 @@ wasm_runtime_memory_destroy();
 unsigned
 wasm_runtime_memory_pool_size();
 
+void
+wasm_runtime_set_mem_bound_check_bytes(WASMMemoryInstance *memory,
+                                       uint64 memory_data_size);
+
 void
 wasm_runtime_set_enlarge_mem_error_callback(
     const enlarge_memory_error_callback_t callback, void *user_data);