Require libraries when a wrapping for a language is enabled
Require libraries when a wrapping for a language is enabled

At the Superbuild level when wrapping for a language was enabled, the
requirements for the language were not marked as required. Not when a
language is enabled the cmake package is required.

Conflicts:
	CMake/sitkLanguageOptions.cmake

Change-Id: I07f40e1e934d72b8d9b5fe128a1a5a8c30f1df47

kaspermarstal/SimpleElastix,kaspermarstal/SimpleElastix,kaspermarstal/SimpleElastix,kaspermarstal/SimpleElastix,kaspermarstal/SimpleElastix,kaspermarstal/SimpleElastix,kaspermarstal/SimpleElastix