ci: add multi branch build; add initial support for apk

[a-gave]

These changes are made:

• fix: update openwrt sdk action in workflow build.yml, because openwrt now distribute sdk snapshots differently
• fix: with an updated sdk action - next merge will overwrite https://feed.libremesh.org/master with apk packages, breaking the default libremesh feeds for current installation
• split the main workflow build.yml to use the new package manager apk and produce a feed at: https://feed.libremesh.org/apk/master, while keeping the default feed for opkg
• adapt packages to use apk versioning scheme
  default from 2024-11-17-1731861652 to 2024.11.17~1731861652
• adapt packages to include libremesh.mk where is possible.
• add multi branch build for shared-state-async to build packages for each archs based on branches: "main openwrt-24.10 openwrt-23.05" and produce relative feeds at:
  https://feed.libremesh.org/arch_packages/master/openwrt_main/x86_64/packages.adb
  https://feed.libremesh.org/arch_packages/master/openwrt_24.10/x86_64/Packages
  https://feed.libremesh.org/arch_packages/master/openwrt_23.05/x86_64/Packages
• update README
• in ci workflows avoid compiling all openwrt packages and publishing only libremesh, but build only libremesh packages, set NO_DEFAULT_FEEDS: 1 to do so, thus reducing the build time from 1h 15min to 7-10min

Details:
chore: add include libremesh.mk in more packages
modify various packages to use libremesh.mk
related to the issue #766
drop the package lua-argparse since it is available in openwrt feeds.

modify PKG_VERSION to follow apk semantics:
use by default $(GIT_COMMIT_DATE)$(GIT_COMMIT_TSTAMP)
like 2024.11.161731788517
if a specific PKG_VERSION is not defined
From openwrt/packages:
Preparations to switch to APK package manager openwrt/packages#23706

ci: update feeds scheme to build C++ packages for 3 latest openwrt branches
the new scheme make these packages available at
https://github.com/libremesh/lime-feed/
referenced by apk in /etc/apk/repositories as
@libremesh_arch_packages https://feed.libremesh.org/arch_packages/master/openwrt_main/x86_64/packages.adb

ci: disable sign packages in main openwrt branch
not yet supported, there is an active pull
Support sign apk feed openwrt/gh-action-sdk#46

to install packages use "apk add --allow-untrusted lime-docs"

lime-system: add apk option in 92_add-lime-repos
chore: update README.md with instruction for apk

[a-gave]

push un-pushed fixes: external_repositories was set to fork.

update apk repositories file to reflect latest changes in openwrt,
creating a /etc/apk/repositories.d/limefeeds.list for lime-packages:
apk: add a customfeeds.list configuration file
base-files: move apk distfeeds into directory

[ilario]

Wow this is a huge amount of work!
Do you think we should include this in the upcoming 2024.1 release or is it ok to leave it for a next release?
Is this also related to #1135 ?

[a-gave]

I'm doing some fixes [done]

the new workflow build.yml should be added soon because next push will use openwrt-main with apk, thus not building almost every lime-packages because of incorrect PKG_VERSION

Yes it is related 1135 to because to use shared-state-async on new builds based on 24.10.x or 23.05.x you should use the feed libremesh_arch_packages if you look for a precompiled one, es:
https://feed.libremesh.org/arch_packages/master/openwrt_23.05/mips_24kc/

[a-gave]

it should be now ready
the workflow multi-arch-build was failing on publishing packages but it should be ok now, i'm testing with all archs

[a-gave]

I confirm that the fail on publishing is fixed since packages are now produced in this fork
https://github.com/a-gave/lime-feed/tree/gh-pages/arch_packages/master/

I updated the description adding more notes on this.

[a-gave]

Just noticed the fail of job build packages with Merge pull request #1133 from henmohr/issue/1077
https://github.com/libremesh/lime-packages/actions/runs/11881297358
and add another note on the description mentioning the update of openwrt-sdk-action