feat: verifySignature function

[Villaquiranm]

related to #2777

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 88.23529% with 4 lines in your changes missing coverage. Please review.

Project coverage is 60.97%. Comparing base (912a5db) to head (06d4232).

Files with missing lines	Patch %	Lines
gnovm/stdlibs/std/native.go	55.55%	2 Missing and 2 partials ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #2776   +/-   ##
=======================================
  Coverage   60.97%   60.97%           
=======================================
  Files         564      564           
  Lines       75273    75307   +34     
=======================================
+ Hits        45897    45918   +21     
- Misses      26008    26018   +10     
- Partials     3368     3371    +3     

Flag	Coverage Δ
contribs/gnodev	61.46% <ø> (ø)
contribs/gnofaucet	15.31% <ø> (+0.85%)	⬆️
gno.land	67.92% <ø> (ø)
gnovm	65.81% <88.23%> (+0.02%)	⬆️
misc/genstd	80.54% <ø> (ø)
misc/logos	20.23% <ø> (ø)
tm2	62.07% <ø> (-0.05%)	⬇️

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

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[notJoon]

CI failed. could you please check and fix this?

[Villaquiranm]

CI failed. could you please check and fix this?

I think it is ok just one does not want to finish do not know why
@notJoon