Add trigger InterruptHandler support

[io-mars]

QuickJS is great! but it cannot set pause after JS_Call, maybe should export a new JS_TriggerInterruptHandler API , then the C program can trigger the JSContext running state through a special JSInterruptHandler, it's very useful when executing a large scripts.Would this be feasible?

void JS_TriggerInterruptHandler(JSContext *ctx)
{
   ctx->interrupt_counter = 0;
}