Refine AOT/JIT code call wasm-c-api import process (#2982)

Allow to invoke the quick call entry wasm_runtime_quick_invoke_c_api_import to
call the wasm-c-api import functions to speedup the calling process, which reduces
the data copying.

Use `wamrc --invoke-c-api-import` to generate the optimized AOT code, and set
`jit_options->quick_invoke_c_api_import` true in wasm_engine_new when LLVM JIT
is enabled.

core/iwasm/include/wasm_c_api.h

@@ -417,6 +417,7 @@ struct wasm_ref_t;
 
 typedef struct wasm_val_t {
   wasm_valkind_t kind;
+  uint8_t __paddings[7];
   union {
     int32_t i32;
     int64_t i64;