Allow for private key to be created in a target directory

[chasefleming]

Closes: #47

[chasefleming]

@bjartek this is a minor breaking change. Will this be an issue upgrading for you? Alternative would be we could have the existing Init function and a new function called InitFromDirectory.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 20.00000% with 4 lines in your changes are missing coverage. Please review.

Project coverage is 58.81%. Comparing base (200347d) to head (32f9589).
Report is 1 commits behind head on main.

Files	Patch %	Lines
accounts/account.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #48      +/-   ##
==========================================
+ Coverage   58.77%   58.81%   +0.03%     
==========================================
  Files          29       29              
  Lines        2193     2190       -3     
==========================================
- Hits         1289     1288       -1     
+ Misses        718      717       -1     
+ Partials      186      185       -1     

Flag	Coverage Δ
unittests	58.81% <20.00%> (+0.03%)	⬆️

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[bjartek]

@bjartek this is a minor breaking change. Will this be an issue upgrading for you? Alternative would be we could have the existing Init function and a new function called InitFromDirectory.

Not an issue for me