This commit adds support for specifying directories containing a single
project to both the `add reference` and `remove reference` commands.
Fixes issue #7343.
* remove reference to TestAssetsManager in dotnet-add-reference
* remove TestAssetsManager dependency from dotnet-build
* remove TAM ref from dotnet-list-reference
* remove TAM dependency from dotnet-msbuild
* remove TAM dependency from ProjectJsonMigration tests
* remove TAM dependency from dotnet.Tests
* remove TAM dependency from dotnet-new.Tests
* remove TAM from dotnet-pack.Tests
* remove TAM from dotnet-publish.Tests
* remove TAM from dotnet-restore.Tests
* remove TAM dependency from dotnet-remove-reference.Tests
* remove TAM dependency from dotnet-run.Tests
* remove TAM dependency from dotnet-test.Tests
* remove TAM dependency from Microsoft.DotNet.Cli.Utils.Tests
* remove TAM from TestBase
* remove TAM
* remove newly introduced dependency on TAM
* Partial conversion to new3. 2 tests fail due to browserlink not restoring.
* new cache initialization
* More lzma changes, and removed a razor ref from templates
* Ephemeral hive flag added to tests that need it
* Updated the template engine version to build against. Minor code cleanup
* Config changes to make template versions separate from template engine versions
* Changed dotnet new versioning to use Product.Version
* Fixing Archiver.csproj
* Fixing dotnet new test.
* Fix LZMA Package Source Condition
* Workaround for newline differences.
* fixed tests with changed template parameters. Added a new3 template non-match test
* Updating the version of msbuild to 15.1.0-preview-000516-03
* Remove test that assumes props/targets imports
The test ItAddsRefBetweenImports validated that the MSBuild XML model contained new project references between the props and targets imports. While useful be fore the SDK attribute, the test no longer adds value since the SDK is added implicitly, guaranteeing it wraps the remaining project contents.
* Move MSBuild to 15.1.0-preview-000509-03
This is the last msbuild version prior to the change of MSBuild's dependencies to include .NET 1.1 components.
* Move MSBuild invocations to use dirs.props/dirs.tasks
* Put back the test targets. We'll unify later.
* Remove dirs.props props from templates msbuild invocation
