Convert CharSequence to BigDecimal
<p>I did some search on this and all I found was that <code>BigDecimal</code> has a constructor that we can pass <code>String</code> to it and it will convert it for us.
But in my case what I have is a <code>java.lang.CharSequence</code> and what I need it to be is <code>BigDecimal</code></p>

<p>What is the correct way to do this conversion? </p>
