Simplify wrapping logic by setting WRAP_<LANGUAGE> in each wrapper - #2604

Add set(WRAP_<LANGUAGE> ON) to all language wrapper CMakeLists.txt files and simplify the conditional checks in sitk_add_<language>_test functions to only check WRAP_<LANGUAGE> instead of both WRAP_<LANGUAGE> and CMAKE_PROJECT_NAME.

This fixes test failures on the dashboard when a wrapping directory is built as a standalone project.

Changes

• Add set(WRAP_<LANGUAGE> ON) to:

  • Wrapping/CSharp/CMakeLists.txt
  • Wrapping/Java/CMakeLists.txt
  • Wrapping/Lua/CMakeLists.txt
  • Wrapping/R/CMakeLists.txt
  • Wrapping/Ruby/CMakeLists.txt
  • Wrapping/Tcl/CMakeLists.txt
  • (Wrapping/Python/CMakeLists.txt already had this)

• Simplify CMake/sitkAddTest.cmake: remove redundant CMAKE_PROJECT_NAME checks from sitk_add_python_test, sitk_add_pytest_test, sitk_add_lua_test, sitk_add_ruby_test, sitk_add_tcl_test, sitk_add_java_test, sitk_add_r_test, and sitk_add_csharp_test.