Validate genesis NAM MaspParams

[batconjurer]

Describe your changes

When calling init chain, we now verify that the native token alias has masp parameters set.

Checklist before merging

• If this PR has some consensus breaking changes, I added the corresponding breaking:: labels
  • This will require 2 reviewers to approve the changes

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.70%. Comparing base (39c940d) to head (ea5404a).
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3806   +/-   ##
=======================================
  Coverage   72.69%   72.70%           
=======================================
  Files         338      338           
  Lines      104467   104487   +20     
=======================================
+ Hits        75946    75967   +21     
+ Misses      28521    28520    -1     

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