[REQ] Add Support for an id prefix or post fix

[koddek]

Add support for adding a prefix and or postfix to the resulting guid ids.
There are some usecases where this would be useful for example, when dealing with json you could quickly identify what the id is for. In debugging an error message with an id or maybe you are trying to find a specific id of some type, having the prefix or postfix on the id would speed that up.

Possible resulting id strings (the final syntax don't have to be an underbar to separate the fix from the guid):

// ids with prefix for different usecases
"person_12345678-BBBb-cCCCC-0000-123456789012"
"user_12345678-BBBb-cCCCC-0000-123456789012"
"reciept_12345678-BBBb-cCCCC-0000-123456789012"
"used_12345678-BBBb-cCCCC-0000-123456789012"
"new_12345678-BBBb-cCCCC-0000-123456789012"
"[enter needed prefix]_12345678-BBBb-cCCCC-0000-123456789012"
etc...

// ids with postfix for different usecases
"12345678-BBBb-cCCCC-0000-123456789012_user"
"12345678-BBBb-cCCCC-0000-123456789012_admin"
"12345678-BBBb-cCCCC-0000-123456789012_order"
"12345678-BBBb-cCCCC-0000-123456789012_customer"
"12345678-BBBb-cCCCC-0000-123456789012_[enter needed postfix]"

[Dreamwalker666]

are you just talking about JSON serialisation here? don't see how it applies else where

[andrewlock]

Yeah, you're describing using custom converters her. That's a nice idea, but I'm not sure it should be in the core library.

Luckily in #117 I'm working on allowing much more customisation, so you should be able to create your own converters that work as you describe