[Feature] Add Organization functions

[MariusStorhaug]

• Fixes [Feature] Organizations - Control and manage all your GitHub organizations #29
  • private/Organization/Get-GitHubAllOrganization.ps1
  • public/Organization/Blocking/Assert-GitHubOrganizationBlockedUser.ps1
  • public/Organization/Blocking/Get-GitHubOrganizationBlockedUser.ps1
  • public/Organization/Get-GitHubOrganization.ps1
  • public/Organization/Get-GitHubOrganizationAppInstallation.ps1
  • public/Organization/Remove-GitHubOrganization.ps1
  • public/Organization/Set-GitHubOrganization.ps1
  • public/Organization/Set-GitHubOrganizationSecurityFeature.ps1

Other fixes:

• public/API/Invoke-GitHubAPI.ps1
  • Added support to convert body to query params when running a GET function.
  • Moved the response into a response property to allow for a more dynamic interaction between the API function and the specific API endpoint functions.
  • Added statuscode, responseheader and request into the object that is returned to the specific API endpoint functions. Required specifically for function that use the statuscode as a way to answer if users are blocked or not on Org or user level. i.e. Check if a user is blocked by an organization
  • Added encoding/charset to Accept and Content-Type parameters, to support use of Unicode icons. Reuired as I was playing around with Set-GitHubUser, and setting bio to I :heart: PowerShell.
• public/Auth/Connect-GitHubAccount.ps1
  • Fixed an issue where the remaining timer on access token validity showed as non padded intigers. They now always show HH:mm:ss. 2+2+2 ints as strings padded with 0's.
  • Fixed an issue where the access token was not getting reset when validity reached its half-life.
• Utilities/
  • Added utility to manage hashtables and merging of objects + casing. This has been used for the Config component, as well as the Auth component. Now it has been revisited due to simplifying the means of passing parameters to API calls with $body = $PSBoundParameters | ConvertFrom-HashTable | ConvertTo-Hashtable -NameCaseStyle snake_case as all the cases for API calls seem to be snake_cased.
  • Utilities will be moved to the Utilities module in a later version. It is kept here for now to not rely on the dependency.
• Users/
  • Added other get user functions and wrapped them into Get-GitHubUser. Different function are accessed using switches on Get-GitHubUser. For more info check the Get-GitHubUser function.
• Simplify docs to not point to English docs by removing the /en/ component in the links.
• Remove unnecessary use of Write-Output.
• Replace function with filter, to streamline pipelining between functions. There is very little other doc on this than 'Its like function where the base script block is treated as end block by default. Filters base script block is process.