Update TronAwareTrait.php

[jesse77169]

I can't send any trx with a quantity less than 0.0001.
For example：
$tron->send('Txxxxxxx', 0.00001);
This cannot be sent

Modifying the code here can solve this problem

I can send 0.000001 trx

[osakey]

public function toTron($double): int
{
$double = number_format($double, 6, '.', ''); // 格式化数字，避免科学记数法
return (int)bcmul((string)$double, (string)1e6, 0);
} 这样修改就行了，也不会影响之前逻辑，报错原因是 0.000001 被转成了 float(1.0E-6)