make wallet setup download option universal by implementing cpu arch detection to switch download pkg by

[nnmfnwl]

Make wallet setup download option universal by implementing cpu arch detection to switch download pkg by.

Same like been introduced PIVX wallet download because of Debian stable build system incompatibility because of PIVX using unstable crust version 65 but debian is still at 63 and we could and probably will hit this like issues later...

Variables cc_download_url and cc_download_sha512sum switch with suffix _arch by using uname -m or arch
to reach variables *_x86_64, *_i686, *_arm or *_aarch64. for example cc_download_url_x86_64 etc...

maybe someone would inspire by https://stackoverflow.com/questions/48678152/how-to-detect-386-amd64-arm-or-arm64-os-architecture-via-shell-bash

please not use distribution specific commands.

for example look at PIVX https://github.com/PIVX-Project/PIVX/releases/tag/v5.6.1

[nnmfnwl]

System now support download by arch like x86_64 i686 arm aarch64...
cc_download_url_<arch>
cc_download_sha512sum_<arch>
cc_download_sha256sum_<arch>

For example like here with PIVX https://github.com/nnmfnwl/dexsetup/blob/merge.2025.02.06/src/cfg.cc.pivx.sh#L12