Support passing the files array in through the CLI

Devs should be able to pass files array in through the CLI. Something like this:

```bash
roku-deploy zip  --files one.txt manifest source/**/* components/**/*
```

See this code in brighterscript-formatter for an example of how to configure this in yargs: https://github.com/rokucommunity/brighterscript-formatter/blob/3497451e418b228b60b6e0405ab461e421f385a9/src/cli.ts#L10