ObjFW  History of src/OFMutableLHAArchiveEntry.h of 3f9e0e0f0717f7eb

The immutable header should always be imported instead. file: [bf622fc22c] check-in: [18045dffca] user: js, branch: trunk, size: 2162 [annotate] [blame] [check-ins using] [diff]

Also makes OF(Mutable){LHA,Tar,ZIP}ArchiveEntry conform to it, providing
a common protocol to access archives. file: [ee76c82277] check-in: [a325d5a1ee] user: js, branch: trunk, size: 3030 [annotate] [blame] [check-ins using] [diff]

There's newer, less common LHA versions that allow 64 bit for the size.
However, for consistency with OFTarArchiveEntry, use unsigned long long
instead of uint64_t. file: [14f294b208] check-in: [6f13f74134] user: js, branch: trunk, size: 3338 [annotate] [blame] [check-ins using] [diff]

The date is meant to be the modification date and the extension is
supposed to override the modification date on old LHA versions where the
modification date is only stored in local time. file: [eae4b7cde4] check-in: [327e67021e] user: js, branch: trunk, size: 3318 [annotate] [blame] [check-ins using] [diff]

__COUNTER__ does not exist in GCC 4.2, and Apple GCC 4.2 is still the
newest compiler available for macOS 10.5. file: [afc904d01b] check-in: [ef614a225d] user: js, branch: trunk, size: 3010 [annotate] [blame] [check-ins using] [diff]

This allows ABI stability with the fragile ABI. file: [35040236c1] check-in: [496695d778] user: js, branch: trunk, size: 2981 [annotate] [blame] [check-ins using] [diff]