Utilities/Release: Explicitly enable ccmake on macOS and Linux

Since commit v3.12.0-rc1~325^2 (ccmake: Check for curses more robustly
before enabling, 2018-03-21) we may not enable ccmake by default when
using a non-system curses (e.g. the static curses we build on Linux for
our binaries).  Enable the option explicitly for our prebuilt binaries.

Utilities/Release/linux64_release.cmake

@@ -34,6 +34,7 @@ OPENSSL_INCLUDE_DIR:PATH=/home/kitware/openssl-1.1.0h/include
 OPENSSL_SSL_LIBRARY:FILEPATH=/home/kitware/openssl-1.1.0h/lib/libssl.a
 PYTHON_EXECUTABLE:FILEPATH=/usr/bin/python3
 CPACK_SYSTEM_NAME:STRING=Linux-x86_64
+BUILD_CursesDialog:BOOL=ON
 BUILD_QtDialog:BOOL=TRUE
 CMAKE_SKIP_BOOTSTRAP_TEST:STRING=TRUE
 CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL:STRING=3

Utilities/Release/osx_release.cmake

@@ -19,6 +19,7 @@ CMAKE_OSX_ARCHITECTURES:STRING=x86_64
 CMAKE_OSX_DEPLOYMENT_TARGET:STRING=10.7
 CMAKE_SKIP_BOOTSTRAP_TEST:STRING=TRUE
 CPACK_SYSTEM_NAME:STRING=Darwin-x86_64
+BUILD_CursesDialog:BOOL=ON
 BUILD_QtDialog:BOOL=TRUE
 CMake_GUI_DISTRIBUTE_WITH_Qt_LGPL:STRING=3
 CMake_INSTALL_DEPENDENCIES:BOOL=ON