feat: massive improvements

[felixfbecker]

• Alignment with git commands
• Pipeline interop with PSGitHub
• More pretty output formatting
• More native LibGit2Sharp return types
• More docs

[codecov[bot]]

Codecov Report

Merging #7 into master will decrease coverage by 21.28%. The diff coverage is 56.04%.

@@             Coverage Diff             @@
##           master       #7       +/-   ##
===========================================
- Coverage   84.76%   63.47%   -21.29%     
===========================================
  Files          33       43       +10     
  Lines         512      742      +230     
  Branches        1        2        +1     
===========================================
+ Hits          434      471       +37     
- Misses         77      269      +192     
- Partials        1        2        +1

Impacted Files	Coverage Δ
PowerGit/Functions/Test-GitRemoteUri.ps1	100% <ø> (ø)	:arrow_up:
PowerGit/Functions/Remove-GitItem.ps1	90% <ø> (ø)	:arrow_up:
PowerGit/Functions/Rename-GitRemote.ps1	0% <0%> (ø)
PowerGit/Functions/Reset-GitHead.ps1	0% <0%> (ø)
PowerGit/Functions/Get-GitRemote.ps1	0% <0%> (ø)
PowerGit/Functions/Add-GitRemote.ps1	0% <0%> (ø)
PowerGit/Functions/Remove-GitRemote.ps1	0% <0%> (ø)
PowerGit/Functions/Remove-GitBranch.ps1	0% <0%> (ø)
PowerGit/Functions/Update-GitRemote.ps1	0% <0%> (ø)
PowerGit/Functions/Stop-GitRebase.ps1	10% <10%> (ø)
... and 47 more

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Continue to review full report at Codecov.

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[felixfbecker]

:tada: This PR is included in version 0.3.0 :tada:

The release is available on:

• PowerShell Gallery
• GitHub release

Your semantic-release bot :package::rocket: