Replace prebuilt ARSCLib with git submodule

[Surendrajat]

Removed the need to build and manually update the ARSCLib library. Only update the ARSCLib submodule instead.
Submodule currently points to the REAndroid/ARSCLib@b942b9b commit of main branch.

Auto release on tags can also be added to the workflow if the maintainer likes the idea.

[REAndroid]

Thank you for this PR!
This was our headache for years, I have a question for you:

• How can we update submodules from git command (not from here github) ? Or is there a way to point specific commit hash on .gitmodules file, then later we edit the hash and push the commit but it should be able to auto update submodule

[Surendrajat]

• How can we update submodules from git command (not from here github) ? Or is there a way to point specific commit hash on .gitmodules file, then later we edit the hash and push the commit but it should be able to auto update submodule

@REAndroid it's a repo in repo so git command works differently based on where you are. The git command from outer repo (APKEditor) sees only a commit reference in module/ARSClib not the content. Same git in module/ARSClib sees full ARSClib repo. So you can do this to update:

git clone --recurse-submodules https://github.com/REAndroid/APKEditor
cd APKEditor/module/ARSClib
git fetch
git checkout <whichever_commit_you_need>
cd ../..
git add -A && git commit -m "updated ARSClib"

Also can you approve the workflow so I can confirm if it builds alright?

[Surendrajat]

Looking at libs/smali.jar I got questions:

1. Why not just use https://github.com/google/smali instead of maintaining yourself? I haven't looked at patches but can't those be upstreamed if they fix issues?
2. If not, then do you want https://github.com/REAndroid/smali-lib as a git submodule too?
3. Also what about JCommand? This also alright as a submodule?

[REAndroid]

1. Why not just use https://github.com/google/smali instead of maintaining yourself? I haven't looked at patches but can't those be upstreamed if they fix issues?

I don't think they are going to maintain it, rather trying to kill it. Anyways we are deprecating dexlib2 with our lib and soon will be completely removed.

3. Also what about `JCommand`? This also alright as a submodule?

Let me merge this PR first