Use equal sign instead of colon in Symfony routing

[stephanvierkant]

• Closes Couldn't find constant expose:true #3225
• Closes Symfony Route annotation needs equal sign, not colon #3241

[TomasVotruba]

I looked at a code and it seems there are multiple issues at once. I recommend sending 1 PR per issues.

I'd love to have the = first, as it influences the most users right now.

[stephanvierkant]

Rector removes the " because it assumes the options in the annotation are in json format, while it isn't.

\Rector\BetterPhpDocParser\PhpDocNode\AbstractTagValueNode::printArrayItem creates a JSON string and hacking this (stop removing the ") doesn't feel right. WDYT?

[TomasVotruba]

Not sure what is the question.

[stephanvierkant]

How do we stop Rector removing the quotes?

PrintArrayItem now returns a JSON string. But the @Routing options expect not a JSON format. So should this method be changed?

[TomasVotruba]

I'm change for better 👍

[stephanvierkant]

Master changed significant, so can't complete this PR.

[TomasVotruba]

Feel free to delete fork, fork again and to re-open new one.
There are mostly test fixtures in the PR, should be doable.