Add hazard and characteristic functions for Life random variates.

[lrnv]

This need tests before being merged

[codecov]

Codecov Report

❌ Patch coverage is 94.50549% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 94.08%. Comparing base (394adab) to head (c3276f4).
⚠️ Report is 7 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Life.jl	94.50%	5 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #35       +/-   ##
===========================================
+ Coverage   83.33%   94.08%   +10.75%     
===========================================
  Files           4        4               
  Lines         114      203       +89     
===========================================
+ Hits           95      191       +96     
+ Misses         19       12        -7     

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