[feature] #2360: Make genesis.json optional again

[ilchu]

Signed-off-by: Ilia Churin churin.ilya@gmail.com

Description of the Change

Pretty much wrapping GenesisConfiguration from cli crate into an Option to allow peer startup without a genesis.json if they're not submitting genesis.

Issue

Resolves #2360 .

Benefits

More flexibility with deployment.

Possible Drawbacks

Slightly wordier initialization of all the related structs, as we have to wrap in Some.

[codecov]

Codecov Report

Merging #2390 (e847ed0) into iroha2-dev (6973f71) will increase coverage by 4.56%.
The diff coverage is 69.19%.

❗ Current head e847ed0 differs from pull request most recent head f05cfd5. Consider uploading reports for the commit f05cfd5 to get more accurate results

@@              Coverage Diff               @@
##           iroha2-dev    #2390      +/-   ##
==============================================
+ Coverage       65.50%   70.06%   +4.56%     
==============================================
  Files             133      142       +9     
  Lines           24697    27894    +3197     
==============================================
+ Hits            16177    19545    +3368     
+ Misses           8520     8349     -171     

Impacted Files	Coverage Δ
cli/derive/src/lib.rs	74.72% <ø> (ø)
cli/src/main.rs	1.35% <0.00%> (-0.04%)	⬇️
cli/src/torii/mod.rs	28.88% <ø> (ø)
config/src/lib.rs	15.38% <0.00%> (+1.09%)	⬆️
core/src/lib.rs	100.00% <ø> (ø)
core/src/smartcontracts/isi/block.rs	100.00% <ø> (ø)
core/src/smartcontracts/isi/domain.rs	39.82% <ø> (ø)
core/src/smartcontracts/isi/triggers.rs	0.00% <0.00%> (ø)
core/src/smartcontracts/isi/tx.rs	25.00% <ø> (ø)
core/src/smartcontracts/isi/world.rs	9.52% <0.00%> (+0.43%)	⬆️
... and 107 more

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[s8sato]

I think this commit should be categorized as a [fix] because it will change the functionality of the code to what it should be