[vcpkg baseline][grppi] Manually control use of tbb

[Thomas1664]

Describe the pull request

• What does your PR fix?

  This port has its own FindTBB.cmake and picks up tbb if it is present. I control the use of tbb explicitly by adding it as a feature. I also removed FindTBB.cmake. Note that this port supports other backends as well, but they are not available at vcpkg.

Related error message:

CMake Error at cmake.modules/FindTBB.cmake:187 (file):
  file failed to open for reading (No such file or directory):

    /mnt/vcpkg-ci/installed/x64-linux/include/tbb/tbb_stddef.h
Call Stack (most recent call first):
  /agent/_work/1/s/scripts/buildsystems/vcpkg.cmake:829 (_find_package)
  CMakeLists.txt:52 (find_package)

I think we didn't see this before because there is another port that uses a vendored copy of tbb.

[JonLiu1993]

Feature tbb is tested successfully in the following triplet:

• x86-windows
• x64-windows
• x64-windows-static
• x64-linux

[JonLiu1993]

Tesed grppi:x64-windows usage successfully

[LilyWangLL]

@dan-shaw Could you please merge this PR? This is a baseline issue.