(GH-217) Template based release notes creation

[akordowski]

Description

This PR addresses #217.

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov-commenter]

Codecov Report

Merging #283 into develop will increase coverage by 1.01%.
The diff coverage is 87.50%.

@@             Coverage Diff             @@
##           develop     #283      +/-   ##
===========================================
+ Coverage    77.34%   78.36%   +1.01%     
===========================================
  Files           54       54              
  Lines         1130     1137       +7     
  Branches       135      131       -4     
===========================================
+ Hits           874      891      +17     
+ Misses         235      225      -10     
  Partials        21       21              

Impacted Files	Coverage Δ
...GitReleaseManager.Core/Options/CreateSubOptions.cs	85.71% <0.00%> (-14.29%)	⬇️
...seManager.Core/ReleaseNotes/ReleaseNotesBuilder.cs	90.47% <86.04%> (+10.47%)	⬆️
...c/GitReleaseManager.Core/Commands/CreateCommand.cs	100.00% <100.00%> (ø)
src/GitReleaseManager.Core/VcsService.cs	72.41% <100.00%> (+1.49%)	⬆️
...anager.Core/Configuration/ConfigurationProvider.cs	45.28% <0.00%> (-1.53%)	⬇️
...ReleaseManager.Core/Extensions/StringExtensions.cs	100.00% <0.00%> (ø)
...easeManager.Core/Configuration/ConfigSerializer.cs	90.00% <0.00%> (+1.53%)	⬆️
...eManager.Core/ReleaseNotes/ReleaseNotesExporter.cs	69.56% <0.00%> (+4.18%)	⬆️

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[akordowski]

@gep13 @AdmiringWorm In the first step I added the Scriban library to have a template based release notes creation. If you agree with the changes, I would add in next step a -template option to the Create command and update the docs.

A question is how should it be handeled when the -template is set but the file is not found?

• Show a warning and use the default template
• Or throw an exception?

[gep13]

@akordowski I would suggest that if the user has asked to use a template, and that template file doesn't exist, then this should be treated as an error, and we should throw an exception, indicating that the required file couldn't be found.

[gep13]

@akordowski if the template file is empty, then this to me is also an exception, and we should throw an error.

[akordowski]

@gep13 I made the changes as discussed. The PR is ready for review.

[gep13]

One minor change...

[gep13]

@akordowski this is looking really good!

One thing though, would it be possible for you to squash some of your commits down into a set of logical commits? We don't really need additional commits like "Fixed Unit Test". Thanks

[akordowski]

@gep13 I made the changes as requested.

[gep13]

LGTM!

[gep13]

I believe the build failure here, after the rebase, isn't related, it is an issue with codecov.

[gep13]

@akordowski thanks again for getting this done, really appreciate it!