[11.0 stable] Implement propagation of IP routes into apps via DHCP

[milan-zededa]

It was strongly requested to make the propagation of static/connected IP routes available in the EVE 11.0 LTS version. This PR must therefore break the rule of not backporting new features (hopefully a one-time exception).

Original PR with the description of the feature: #3690

[milan-zededa]

@uncleDecart I had to update EVE APIs in 11.0 and it brought also some patch envelopes changes. Hopefully it does not break anything.

[eriknordmark]

Can you check whether there are other API additions which arrive with this and in particular whether there was some api_capability value defined between 11.0.X and the route propagation one?

[codecov]

Codecov Report

Attention: Patch coverage is 58.18713% with 143 lines in your changes are missing coverage. Please review.

Project coverage is 20.58%. Comparing base (9b7759d) to head (69f1bfa).

Files	Patch %	Lines
pkg/pillar/nireconciler/linux_config.go	64.73%	46 Missing and 15 partials ⚠️
pkg/pillar/cmd/zedagent/parseconfig.go	0.00%	37 Missing ⚠️
pkg/pillar/nireconciler/genericitems/dnsmasq.go	72.07%	29 Missing and 2 partials ⚠️
pkg/pillar/types/zedroutertypes.go	0.00%	6 Missing ⚠️
pkg/pillar/dpcreconciler/genericitems/dhcpcd.go	28.57%	5 Missing ⚠️
pkg/pillar/cmd/zedagent/reportinfo.go	0.00%	1 Missing ⚠️
pkg/pillar/dpcreconciler/linux.go	0.00%	0 Missing and 1 partial ⚠️
pkg/pillar/nireconciler/linux_acl.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##           11.0-stable    #3831      +/-   ##
===============================================
+ Coverage        20.33%   20.58%   +0.24%     
===============================================
  Files              212      211       -1     
  Lines            46085    46348     +263     
===============================================
+ Hits              9373     9540     +167     
- Misses           36030    36112      +82     
- Partials           682      696      +14     

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[milan-zededa]

Can you check whether there are other API additions which arrive with this and in particular whether there was some api_capability value defined between 11.0.X and the route propagation one?

Luckily there were no API capabilities added between what 11.0 has and the route propagation.
API update brought few patch envelopes additions (metrics). But as I understand it, it has no effect on what is implemented in 11.0 for this feature.

[eriknordmark]

LGTM

[uncleDecart]

@milan-zededa patch envelopes support is not (fully) introduced in 11.0, so it should be fine

[uncleDecart]

LGTM