Enable to suppress Suspicious dumping error

[survik1]

• bug fix / new feature? new feature
• BC break? no

Nette/Di introduced warning about suspicious dumping of objects. While i understand the intention, this little warning forces as to rewritte significant amount of value objects that we just pass around. These value objects commonly implements specific interfaces, following pattern of private variable and getters. Even though we could spend time to rewrite everything into PHP 8.4 pattern of public protected(set) $variable properties (and hopefully don't run into any more complicated obstacle), I belive that this dev-oriented warning should be possible to suspend by dev.

I propose to add a class attribute that would prevent raising up this warning.

I was unable to add any tests as I don't know how to test trigger_error() function, but I am willing to add them if you point me in some direction.

[survik1]

@dg Hello, could you please comment this pr in any way?

[dg]

Please try to describe why such objects are dumped, i.e. very simply what the object is and how it is listed in the configuration file.