Improve forbidIdenticalClassComparison example

[enumag]

Adding Brick classes here was a good inspiration, thanks for that!

However:

• We can remove DateTimeInterface from here... the array is merged with the default configuration from rules.neon anyway so this way DateTimeInterface actually gets into ForbidIdenticalClassComparisonRule twice, I checked.
• Brick\Money doesn't exist, it's Brick\Money\Money and I think it's better to use the interface instead anyway to also detect Brick\Money\RationalMoney.
• BigInteger, BigDecimal and BigRational all extend BigNumber anyway so they're redundant.
• ramsey/uuid is a very commonly used library and I almost forgot to add UuidInterface into my config.

[janedbal]

It was meant as an inspiration, but working copy-pastable example is always better, thanks!

the array is merged with the default configuration from rules.neon anyway so this way DateTimeInterface actually gets into ForbidIdenticalClassComparisonRule twice, I checked

This is tricky and imo unexpected, I never realized this default Nette DI behaviour is making our "default" more a "always there" options. I think the only solution is to document that any custom setup should be done with "prevent merging" flag like blacklist!.

forbidIdenticalClassComparison:
            blacklist!: # DateTimeInterface not there anymore
                - Brick\Money\MoneyContainer
                - Brick\Math\BigNumber
                - Ramsey\Uuid\UuidInterface

[janedbal]

See #105

[enumag]

@janedbal Nice, thank you!