Added ZCN Service Fee

[din-mukhammed]

Fixes

Changes

Need to be mentioned in CHANGELOG.md?

Tests

Tasks to complete before merging PR:

• Ensure system tests are passing. If not Run them manually to check for any regressions 📋
• Do any new system tests need added to test this change? do any existing system tests need updated? If so create a PR at 0chain/system_test
• Merge your system tests PR to master AFTER merging this PR

Associated PRs (Link as appropriate):

• blobber:
• gosdk:
• system_test:
• zboxcli:
• zwalletcli:
• Other: ...

[codecov-commenter]

Codecov Report

Merging #1975 (77ffd4a) into staging (59839d6) will increase coverage by 0.01%.
The diff coverage is 54.05%.

@@             Coverage Diff             @@
##           staging    #1975      +/-   ##
===========================================
+ Coverage    26.00%   26.02%   +0.01%     
===========================================
  Files          370      370              
  Lines        61293    61321      +28     
===========================================
+ Hits         15938    15956      +18     
- Misses       43455    43457       +2     
- Partials      1900     1908       +8     

Flag	Coverage Δ
Unit-Tests	26.02% <54.05%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
code/go/0chain.net/smartcontract/zcnsc/mint.go	45.80% <54.05%> (-0.81%)	⬇️
...ain.net/smartcontract/storagesc/config_settigns.go	54.76% <0.00%> (ø)
...de/go/0chain.net/smartcontract/vestingsc/config.go	58.42% <0.00%> (+3.15%)	⬆️

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[dabasov]

lgtm

[peterlimg]

Please add unit tests to verify the service fee paying. So need to assert:

• service fee is paid to all authorizers correctly
• the mint tokens is correct

[peterlimg]

@din-mukhammed please add the unit tests

[din-mukhammed]

@peterlimg @dabasov added ut

[dabasov]

lgtm