Cmake Warnings from CI tests

[ChrisJChang]

A recent PR, introducing a CI test for running cmake found several warnings/errors. These are the ones without an existing dedicated issue that I could see.

"Compatibility with CMake < 3.10 will be removed from a future version of
CMake."
This will be addressed by PR #453

Update the VERSION argument value. Or, use the ... syntax
to tell CMake that the project requires at least but has been updated
to work with policies introduced by or earlier.

CMake Error (dev) at CMakeLists.txt:344 (find_package):
Policy CMP0167 is not set: The FindBoost module is removed. Run "cmake
--help-policy CMP0167" for policy details. Use the cmake_policy command to
set the policy and suppress this warning.