add: pallet clockin

[ruibinx]

• add: init clockin pallet
• add: clock in meta
• add: clock in

{Summary}

Fixes #{issue}

Type of change

• [ ] Bug Fix (non-breaking change which fixes an issue)
• [ ] New Feature (non-breaking change which adds functionality)
• [ ] Breaking Change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update
• [ ] This change requires a storage migration
• [ ] This change requires a benchmark

Checklist

• [ ] My code follows the style guidelines of this project
• [ ] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [ ] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] New and existing benchmarks pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [ ] I have checked my code and corrected any misspellings

[codecov-commenter]

Codecov Report

Merging #67 (a52b8c0) into main (fd8bc2b) will increase coverage by 0.28%. The diff coverage is 48.09%.

@@            Coverage Diff             @@
##             main      #67      +/-   ##
==========================================
+ Coverage   42.24%   42.53%   +0.28%     
==========================================
  Files          36       37       +1     
  Lines        2540     2671     +131     
==========================================
+ Hits         1073     1136      +63     
- Misses       1467     1535      +68     

Impacted Files	Coverage Δ
pallets/clockin/src/lib.rs	48.09% <48.09%> (ø)

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