config dump with tests

[LesnyRumcajs]

Summary of changes
Changes introduced in this pull request:

• added config dump subcommand which should dump the current configuration to stdout in a TOML format.
• added basic CLI tests
• fixed a minor bug with token used via CLI

Reference issue to close (if applicable)

Closes #1478

Other information and links

[elmattic]

Btw, any reason you have implemented it as config dump and not just dumpconfig?

[LesnyRumcajs]

Btw, any reason you have implemented it as config dump and not just dumpconfig?

Basically to make it more extendible from start. I'd imagine in the future we could manipulate at least part of the configuration at runtime. Plus I took some inspiration from Lotus CLI :) . Does it make sense @elmattic ?

[elmattic]

Btw, any reason you have implemented it as config dump and not just dumpconfig?

Basically to make it more extendible from start. I'd imagine in the future we could manipulate at least part of the configuration at runtime. Plus I took some inspiration from Lotus CLI :) . Does it make sense @elmattic ?

Yes, makes lot of sense :)

[codecov]

Codecov Report

Merging #1485 (6481298) into main (8cfdc9b) will increase coverage by 0.10%.
The diff coverage is 79.06%.

@@            Coverage Diff             @@
##             main    #1485      +/-   ##
==========================================
+ Coverage   44.19%   44.29%   +0.10%     
==========================================
  Files         321      323       +2     
  Lines       28373    28414      +41     
==========================================
+ Hits        12539    12587      +48     
+ Misses      15834    15827       -7     

Impacted Files	Coverage Δ
blockchain/chain_sync/src/chain_muxer.rs	1.74% <ø> (+0.24%)	⬆️
forest/src/cli/config.rs	100.00% <ø> (+100.00%)	⬆️
forest/src/cli/mod.rs	0.00% <0.00%> (ø)
forest/src/subcommand.rs	0.00% <0.00%> (ø)
node/db/src/rocks_config.rs	100.00% <ø> (ø)
node/forest_libp2p/src/config.rs	100.00% <ø> (+100.00%)	⬆️
forest/src/cli/config_cmd.rs	64.28% <64.28%> (ø)
forest/tests/config_tests.rs	100.00% <100.00%> (ø)
vm/actor/src/builtin/miner/mod.rs	33.54% <0.00%> (+0.04%)	⬆️
... and 3 more

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