Merge pull request #3823 from bytecodealliance/dev/shared_heap
Implement the shared heap feature for interpreter, aot and llvm jit.
Add below runtime APIs:
```C
wasm_shared_heap_t
wasm_runtime_create_shared_heap(SharedHeapInitArgs *init_args);
bool
wasm_runtime_attach_shared_heap(wasm_module_inst_t module_inst,
wasm_shared_heap_t shared_heap);
void
wasm_runtime_detach_shared_heap(wasm_module_inst_t module_inst);
uint64_t
wasm_runtime_shared_heap_malloc(wasm_module_inst_t module_inst, uint64_t size,
void **p_native_addr);
void
wasm_runtime_shared_heap_free(wasm_module_inst_t module_inst, uint64_t ptr);
```
And allow wasm app to call API shared_heap_malloc and shared_heap_free:
```C
void *shared_heap_malloc(uint32_t size);
void shared_heap_free(void *ptr);
```
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