Add a camel cow to cowsay

Hello,

I would like to propose adding a new camel cow to cowsay.

The camel is the mascot of Perl so I think this would cool to have.

Here is my attempt

```
Camel Cow

 ____p      ....
/.. o\\    [.mm.] 
   \;e\\  [.r,l.+]~ 
    \`.,v/`,.:q.+.\` 
     \,.`,.`.n.,`.lwj
      ||  \\   || \\
      //  //   // //
     uu  uu   uu uu
```

Thanks, and happy holidays.