Add Union Testnet

[adairrr]

• Adds Union.
• Updates docs to include missing networks.
• Adds list_channels for use with union

Checklist

• [ ] Changelog updated.
• [x] Docs updated.

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Deploying cw-orchestrator with    Cloudflare Pages

Latest commit:	8a64408
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[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 15 lines in your changes missing coverage. Please review.

Project coverage is 54.4%. Comparing base (3e528a8) to head (3030051).

Files	Patch %	Lines
cw-orch-daemon/src/queriers/ibc.rs	0.0%	14 Missing :warning:
...terchain/interchain-daemon/src/packet_inspector.rs	0.0%	1 Missing :warning:

Additional details and impacted files

| [Files](https://app.codecov.io/gh/AbstractSDK/cw-orchestrator/pull/450?dropdown=coverage&src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AbstractSDK) | Coverage Δ | | |---|---|---| | [packages/cw-orch-networks/src/networks/mod.rs](https://app.codecov.io/gh/AbstractSDK/cw-orchestrator/pull/450?src=pr&el=tree&filepath=packages%2Fcw-orch-networks%2Fsrc%2Fnetworks%2Fmod.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AbstractSDK#diff-cGFja2FnZXMvY3ctb3JjaC1uZXR3b3Jrcy9zcmMvbmV0d29ya3MvbW9kLnJz) | `0.0% <ø> (ø)` | | | [packages/interchain/interchain-core/src/types.rs](https://app.codecov.io/gh/AbstractSDK/cw-orchestrator/pull/450?src=pr&el=tree&filepath=packages%2Finterchain%2Finterchain-core%2Fsrc%2Ftypes.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AbstractSDK#diff-cGFja2FnZXMvaW50ZXJjaGFpbi9pbnRlcmNoYWluLWNvcmUvc3JjL3R5cGVzLnJz) | `4.0% <ø> (ø)` | | | [...terchain/interchain-daemon/src/packet\_inspector.rs](https://app.codecov.io/gh/AbstractSDK/cw-orchestrator/pull/450?src=pr&el=tree&filepath=packages%2Finterchain%2Finterchain-daemon%2Fsrc%2Fpacket_inspector.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AbstractSDK#diff-cGFja2FnZXMvaW50ZXJjaGFpbi9pbnRlcmNoYWluLWRhZW1vbi9zcmMvcGFja2V0X2luc3BlY3Rvci5ycw==) | `0.0% <0.0%> (ø)` | | | [cw-orch-daemon/src/queriers/ibc.rs](https://app.codecov.io/gh/AbstractSDK/cw-orchestrator/pull/450?src=pr&el=tree&filepath=cw-orch-daemon%2Fsrc%2Fqueriers%2Fibc.rs&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AbstractSDK#diff-Y3ctb3JjaC1kYWVtb24vc3JjL3F1ZXJpZXJzL2liYy5ycw==) | `3.5% <0.0%> (-0.2%)` | :arrow_down: | ... and [1 file with indirect coverage changes](https://app.codecov.io/gh/AbstractSDK/cw-orchestrator/pull/450/indirect-changes?src=pr&el=tree-more&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=AbstractSDK)