[DA] Add per-device addressing (DA) to WAN topic/channel decoding strategy

[amotl]

About

This patch implements the proposal outlined at GH-133, adding a generic per-device topic addressing scheme, not exclusively but also in order to bring in multi-tenant TTN support, see GH-8.

Documentation

... is still missing. But reading the code, specifically the test cases and inline comments, will give you an idea.

Details

• Per-device addressing and topic/channel decoding strategies. Valid examples are:

  # Addressing a device.
  mqttkit-1/device/123e4567-e89b-12d3-a456-426614174000
  
  # Addressing a channel.
  mqttkit-1/channel/network-gateway-node

Backlog

• [x] Channel isolation / authentication, see https://github.com/daq-tools/kotori/issues/133#issuecomment-1562003560. => Resolved with 0e60d11c8281.
• [x] Maybe also implement at LanStrategy, not only at WanBusStrategy? => LanStrategy will be dissolved in favor of SensorWAN direct device addressing.
• [ ] What about the data export path?
• [ ] As a followup, what about per-device downlink messages?
• [x] Documentation, both for the generic addressing scheme, for example using UUIDs as device identifiers, and the dashed topic addressing scheme, relating to multi-tenant TTN acquisition. => Documentation for multi-tenant TTN acquisition will be added with a subsequent patch.

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.23 :tada:

Comparison is base (2a0b51c) 53.02% compared to head (d2151b6) 53.26%.

:exclamation: Current head d2151b6 differs from pull request most recent head 1fa3ca5. Consider uploading reports for the commit 1fa3ca5 to get more accurate results

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #136 +/- ## ========================================== + Coverage 53.02% 53.26% +0.23% ========================================== Files 100 100 Lines 5267 5291 +24 ========================================== + Hits 2793 2818 +25 + Misses 2474 2473 -1 ``` | Flag | Coverage Δ | | |---|---|---| | unittests | `53.26% <100.00%> (+0.23%)` | :arrow_up: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daq-tools#carryforward-flags-in-the-pull-request-comment) to find out more. | [Impacted Files](https://app.codecov.io/gh/daq-tools/kotori/pull/136?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daq-tools) | Coverage Δ | | |---|---|---| | [kotori/daq/strategy/wan.py](https://app.codecov.io/gh/daq-tools/kotori/pull/136?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=daq-tools#diff-a290b3JpL2RhcS9zdHJhdGVneS93YW4ucHk=) | `100.00% <100.00%> (+3.44%)` | :arrow_up: |

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