ObjFW  All files named "src/OFIterator.m"

The new implementation is easier to use as it does automatic resizing,
but therefore it's not realtime-capable anymore. The new implementation
should also be a little bit faster.

I decided to change the implementation as only very few need a
realtime-capable dictionary and those few will most likely write their
own implementation for their specific case anyway.

As the new implementation no longer uses OFList, this also made it
possible to remove a hack from OFList. file: [d7091488bd] check-in: [bbf1f79b8f] user: js, branch: trunk, size: 1644 [annotate] [blame] [check-ins using] [diff]

OFDictionary:
* More optimized way to internally store the data.
* Faster resizing of dictionaries (no rehashing anymore).

OFIterator:
* Return a key/object pair rather than first the key and then the
object.

OFList:
* Support for list objects with a different size so you can have your
own list object structs. file: [96f23ad28b] check-in: [24ecf55297] user: js, branch: trunk, size: 1350 [annotate] [blame] [check-ins using] [diff]

And while at it, change #import <config.h> in some files to
#import "config.h". file: [e57d8be90e] check-in: [2a4aa05a84] user: js, branch: trunk, size: 1113 [annotate] [blame] [check-ins using] [diff]