[libogg] Add package config module

[evpobr]

PS D:\vcpkg> vcpkg install libogg
The following packages will be built and installed:
    libogg[core]:x64-windows
Starting package 1/1: libogg:x64-windows
Building package libogg[core]:x64-windows...
-- Using cached D:/vcpkg/downloads/xiph-ogg-v1.3.3.tar.gz
-- Using source at D:/vcpkg/buildtrees/libogg/src/v1.3.3-8dc28d69e8
-- Configuring x64-windows
-- Building x64-windows-dbg
-- Building x64-windows-rel
-- Installing: D:/vcpkg/packages/libogg_x64-windows/share/libogg/copyright
-- Performing post-build validation
-- Performing post-build validation done
Building package libogg[core]:x64-windows... done
Installing package libogg[core]:x64-windows...
Installing package libogg[core]:x64-windows... done
Elapsed time for package libogg:x64-windows: 16.34 s

Total elapsed time: 16.34 s

The package libogg:x64-windows provides CMake targets:

    find_package(Ogg CONFIG REQUIRED)
    target_link_libraries(main PRIVATE Ogg::Ogg)

[Neumann-A]

@evpobr was there a reason you renamed the library from ogg to Ogg? If not i probably will change it to OGG or ogg. Depending on what works nativly with VTK 8.2.0 (#5574)

[evpobr]

VTK creates imported OGG::OGG target. Funny, Ogg is not abbreviation. I will ask CMake developers.