Archiver, 7z Alternative and FreeArc Replacement

[panker1992]

This is a project i have been designing for the past year,

this is practically a brand new archiver, it has custom everything,

Brand new Header, like Freearc which with its utility has taken this forum for the past decade and more
this project's plan is to practically replace it.

I have added a ton of stuff, including the ability to use external algorithms and tools, and i have also included xtool 7.9 from Razor Github page into it as an internal means to precompress.

it comes with 2 modes,

Solid Block, and Blocked compression

you can rely on solid block to pack your games while a block compression can be used to maintain archives.

I plan to expand this with GUI and a DLL for Inno.

Unsolveable:
1) zstd, cannot use window > 1GB in 32 bit, hence :w30 is max for 32 bit systems. it cannot even decompress it.
2) filtering has been suspended because its slow.
3) packjpg,packmp3 are single threaded due to init sequence they are having build in and their buffers automatically clear each other out.
4) Precomp Codec will never be able to work in succession, you can only have one instance per chain, but you can use whatever you want in it as many cases and whatever depth (max:10)

Known Cases Future Fix maybe:
32bit executable uses 64bit placeholders, originally a 32 bit wasn't in the plans. this is a future fix.
New code for delphi lzma2/lzma/xz/7z is added via sdk 26.01. Possibility of adding it.

Bugs - To Do list:
Bug: Brunsli Codec in Precomp, out of bound bugs, best replacement is jojpeg because packjpg is single threaded.
Bugs: New patching Engine, release 0.1, which will be replacing zstd one that is actually present.
Masked Compression placeholders are added.


Changes - WIP 7.4:
SOS!!!
1) a critical bug in header creation was fixed
2) a critical bug was fixed that didnt verify files on decoding, on some occasions that led to corruption
3) a memory leak that occured rarely in compression succession.