update CMake build to require versions of NCEPLIBS

[edwardhartnett]

UPP uses various NCEPLIBS, but does not check for their versions in CMake:

find_package(bacio REQUIRED)
find_package(crtm REQUIRED)
find_package(g2 REQUIRED)
find_package(g2tmpl REQUIRED)
if(BUILD_WITH_GTG)
  find_package(ip REQUIRED)
endif()

Required versions should be listed, and kept up to date. THat is, if UPP changes to require version 3.5.1 of g2, then the build needs to check that and enforce it. The build must be changed whenever that version increases.

This is part of the UPP build's responsibility. Relying on the correct version being present hides problems and makes debugging much harder. Checking the version at build time is normal practice and will ensure that any mismatched versions are caught immediately.