Directory.Build.props and Directory.Build.targets are handled by the
project system, so are not included in this change.

Changes our blob publish to include the manifest file. Needed by more
recent versions of product build.

Also decided to just link our two msbuild files together via MSBuild
task vs. a powershell script. The point of microbuild.ps1 is to test as
much as possible in our jenkins build. There is no way to actually test
blob publishing in Jenkins hence this indirection was just causing
problems, not helping anything.

This changes the reference assemblies we use for the CoreClr compiler
compilation to be Net Standard 2.0 RTM. Previously they were a beta
version.

This did mean a number of tests had to be moved to be desktop specific
again. This is primarily due to the presence of ValueTuple as a default
type in Net Standard 2.0. Tests that relied on ValueTuple not being
defined had to be moved to net461 which doesn't have that type defined
by default.

* Source packages improvements

* Target net45

* Only generate source link when emitting PDBs

* Make BuildBoss happy

Version `0.2.0-beta-000080` only exists on my local system; we actually want version `0.2.0-beta-000081` which is publicly available.

1. Add the XliffTasks package for all projects.
2. Automatically update XLF files during build on dev machines.
3. Opt-in to the .NET Core satellite assembly generation task.
4. Turn off localization for non-shipping projects by default.
5. Work around an issue in locale-neutral CTO generation.

Change to newest version, which has some additional timeout fixes

Contains various bug fixes.

The old package had a bug in RunCsc.cmd that didn't properly
quote the dotnet path. When the SDK is upgraded to a sufficient
version by VS, the full dotnet path will be used, which contains
spaces and fails without proper quoting. This updates us to a package
which contains almost the same compilers, but includes the fix for
quoting the dotnet path properly (in PR #23034).

These assets already have a correct strong name as they are signed with
a full key. They only need a certificate signing.