feat: ufmt package to print all numeric primitive

[r3v4s]

gno.land/p/demo/ufmt to print all int*, uint* numeric except for *ptr

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

All modified and coverable lines are covered by tests ✅

Project coverage is 44.80%. Comparing base (01e91be) to head (f394808).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1784      +/-   ##
==========================================
- Coverage   47.51%   44.80%   -2.71%     
==========================================
  Files         388      459      +71     
  Lines       61373    67705    +6332     
==========================================
+ Hits        29159    30335    +1176     
- Misses      29772    34828    +5056     
- Partials     2442     2542     +100     

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[leohhhn]

Thanks for the contribution! 💯