Add a backend for node and Vocdoni/SDK operations

[microstudi]

Replaces browser operations with a node wrapper backend.

• Can create organization wallet
• Get more tokens (dev/stg)
• Create election in vocdoni
• Can manually start
• Can automatically start
• Can pause/restart
• Can fetch voting stats
• Saves the results
• Tests
• Upload census

Setup election

Start election

Processing...

Pause election

[codecov]

Codecov Report

Attention: 72 lines in your changes are missing coverage. Please review.

Comparison is base (8ea2d6c) 92.26% compared to head (7d3f7f0) 87.69%.

❗ Current head 7d3f7f0 differs from pull request most recent head 295f3ef. Consider uploading reports for the commit 295f3ef to get more accurate results

Files	Patch %	Lines
...ds/decidim/vocdoni/admin/update_election_status.rb	39.53%	26 Missing ⚠️
app/jobs/decidim/vocdoni/admin/sdk_runner_job.rb	0.00%	21 Missing ⚠️
...cidim/vocdoni/admin/create_vocdoni_election_job.rb	45.00%	11 Missing ⚠️
...trollers/decidim/vocdoni/admin/steps_controller.rb	30.00%	7 Missing ⚠️
...lers/decidim/vocdoni/admin/elections_controller.rb	60.00%	4 Missing ⚠️
app/helpers/decidim/vocdoni/admin/steps_helper.rb	75.00%	2 Missing ⚠️
.../decidim/vocdoni/admin/create_voter_wallets_job.rb	95.83%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #72      +/-   ##
==========================================
- Coverage   92.26%   87.69%   -4.57%     
==========================================
  Files          87       86       -1     
  Lines        1706     1804      +98     
==========================================
+ Hits         1574     1582       +8     
- Misses        132      222      +90     

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[andreslucena]

I've given a first look, can you check it out please?

[microstudi]

All issues fixed @andreslucena !

[andreslucena]

I have a few more details but also I think I found a potential problem between the commands and the jobs. As I mentioned, we could move the problem to an issue so we can merge this ASAP

[microstudi]

@andreslucena most changes applied, can you review again?