Add customizable storage disk support

[npostman]

This feature adds a configurable disk name for storage.

Idea and most work credits go to @forxer. I made a small change to make it actually work, and added test support.

In the process I also made the store path config variable work.

[npostman]

@RichardStyles Any chance you could review and merge this PR?

Thanks.

[mylemans]

@RichardStyles Same question as npostman :s

[bloomlive]

@RichardStyles, let us know. Currently cannot use package with Vapor (AWS Lambda) as the key would just get lost. :)

[RichardStyles]

Trying to play catch up with these. Apologies for the delay - it's been a fun year.

My initial thought, you can create your own handler class and set provided it follows the RsaKeyHandler implementation.

 /**
     * This class can be overridden to define how the RSA keys are stored, checked for
     * existence and returned for Encryption and Decryption. This allows for keys to
     * be held in secure Vaults or through another provider.
     */
    'handler' => \RichardStyles\EloquentEncryption\FileSystem\RsaKeyStorageHandler::class,

But this PR would make it easier to manage storage - so will look at this as it makes sense to have.

[npostman]

Welcome back 😄 And thanks for having a look.

[goyote]

@RichardStyles click merge

[bloomlive]

At this point will consider package abandoned given the unwillingness of maintainer to communicate during a period of 3 years.