Update Windows aria2 executables per architecture

[149segolte]

Description

Package architecture-specific executables with Motrix.

Related Issues

As mentioned in the comment, #271 (comment), Motrix did not ship 64bit aria2 in windows binaries was because of packaging issues in electron builder.

Checklist:

• Have you checked to ensure there aren't other open Pull Requests for the same update/change?
• Have you linted your code locally prior to submission?
• Have you successfully run the app with your changes locally?

[149segolte]

@agalwood, I have looked into agalwood/aria2 but have not been able to understand, if the aria2c.exe is compiled by the CI for this repository or is it simply copied over?
Currently, in the last commit of this draft, the x64 folder contains a copy of the ia32 aria2c.exe. Locally I have tested this using official aria2 release binaries.
Can you provide me with the 64bit binary or should I use the official binary?
As for agalwood/aria2, since that repo is 74 commits behind, is it going to be rebased to the recent aria2 release?

[149segolte]

I have opened a PR at agalwood/aria2#1 to bump aria2 to 1.36.0. The windows binaries used in the PR are generated from 1.36.0. As for Linux and macOS, maybe a separate PR can be opened for them.

[agalwood]

Thanks for your contribution. I will update aria2 to the latest version.