feat(gnoland): pass genesis file as a flag

[thehowl]

• Depends on feat: standardize node directory structure #1944 (git history is based on that one)
• Closes [chain] Add a genesis.json path flag to gnoland start #1883

Contributors' checklist...

• Added new tests, or not needed, or not feasible
• Provided an example (e.g. screenshot) to aid review or the PR is self-explanatory
• Updated the official documentation or not needed
• No breaking changes were made, or a BREAKING CHANGE: xxx message was included in the description
• Added references to related issues and PRs
• Provided any useful hints for running manual tests
• Added new benchmarks to generated graphs, if any. More info here.

[codecov]

Codecov Report

Attention: Patch coverage is 80.00000% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 46.26%. Comparing base (06e8783) to head (e1a5d32).
Report is 1 commits behind head on master.

Files	Patch %	Lines
gno.land/cmd/gnoland/start.go	75.00%	1 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1972   +/-   ##
=======================================
  Coverage   46.26%   46.26%           
=======================================
  Files         482      483    +1     
  Lines       68817    68841   +24     
=======================================
+ Hits        31838    31851   +13     
- Misses      34350    34359    +9     
- Partials     2629     2631    +2     

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[thehowl]

@zivkovicmilos This PR is good to go, here is the diff.

I'll keep it in draft for now, fix it up after your PR is merged and then mark it as ready for review

I suggest you to start pushing directly to gnolang/gno rather than your fork so these "stacks" become easier 🙏

[zivkovicmilos]

🚀 🚀 🚀