Improve handling of `sales_order_payment` `cc_number_enc` and `reencrypt-column`

[convenient]

Courtesy of @mpchadwick

i'm also wondering there should be pagination used here https://github.com/genecommerce/module-encryption-key-manager/blob/master/Service/ChangeEncryptionKey.php#L56-L60 . I don't think we've seen it yet, but I think fetchPairs wlll attempt to load the entire dataset into memory, so I do think this can run out of memory at a certain point

The custom reencrypt-column command also may need a review.

[braders]

I am working on a site with around 2.5 million records in the sales_order_payment table, and am wary to try loading that into memory.

We don't support saved card numbers, and so cc_number_enc is always empty. It'd be nice to have the possibility to skip running the _reEncryptCreditCardNumbers function.

[convenient]

@braders I would happily take a PR for that, it's a good addition.

1. Add a new flag like --skip-sales-order-payment-cc-number (or something with a better name)

module-encryption-key-manager/Console/GenerateEncryptionKey.php

Lines 51 to 56 in 2174b19

	new InputOption(
	self::INPUT_KEY_FORCE,
	null,
	InputOption::VALUE_NONE,
	'Whether to force this action to take effect'
	),

2. Pass information down to ChangeEncryptionKey

It's not super elegant, but similar to how I pass down the console output

module-encryption-key-manager/Console/GenerateEncryptionKey.php

Line 104 in 2174b19

$this->changeEncryptionKey->setOutput($output);

We can set configuration on the object to alter its behaviour prior to running the changeEncryptionKey command

3. Update ChangeEncryptionKey

Update the code below to check for the config and skip if not required.

module-encryption-key-manager/Service/ChangeEncryptionKey.php

Lines 52 to 54 in 2174b19

	protected function _reEncryptCreditCardNumbers()
	{
	$this->writeOutput('_reEncryptCreditCardNumbers - start');

[convenient]

@braders can you please look at #26 ?