Add info about visibility to properties and methods

[SebastianZ]

The visibility of object properties and methods, i.e. public, protected, private should be shown within the dump.

Sebastian

[inoas]

Is this still being used by you day to day?

[SebastianZ]

I still use PHPDump from time to time but neglected development of this project lately because of time constraints.
I'd like to pick it up again this year, but I also welcome anyone wanting to help me.

Sebastian