Edk2-pytool-extensions

* Features:
* BREAKING CHANGE - PR 77 - Refactor BuildSettingsManager.GetModulePkgsPath to GetPackagesPath
* BREAKING CHANGE - PR 74 - Refactor SetupSettingsManager.GetRequiredRepos to GetRequiredSubmodules and return list of RequiredSubmodule objects
* Bugs
* Issue 65 - web dependency sha256 value is case sensitive
* Issue 72 - Nuget dependencies hang when credentials are needed
* Issue 59 - Missing information from version report

* Features:
* BREAKING CHANGE - PR 48 - Refactor for consistent multi-pkg support in invocables.
* Bugs
* Issue 49 - Build.Conf not parsed correctly
* Issue 47 - Setup, Update, and Build SettingsManager can't optimize based on user supplied CLI options because there is no sharing of that back to settings manager
* Issue 40 - web dependency doesn't work on single files
* Issue 31 - stuart_ci_build should not put all dependency in the PackagesPath
* Issue 23 - Stuart doesn't give a good error when trying to use the wrong invocable
* Issue 15 - Stuart_ci_build -p parameter eats all positional parameters following it

* Features:
* Issue 27 - Add Api to allow override of var_dict entry
* Change CIBuild plugins to allow detection of skipping using newly defined return code
* Bugs
* Issue 27 - When a build variable is updated with same value but different attributes those attributes are not set.

* Bugs
* Issue 14 - XML log created by Stuart_ci_build has incorrect fields

* Bugs
* Issue 14 - XML log created by Stuart_ci_build has incorrect fields

* Bugs
* Issue 11 - MAX_CONCURRENT_THREAD_NUMBER is not required in Target.txt
* Issue 9 - ConfMgmt incorrect usage of shell environment leading to exception