Run TDataXtd_test only if OCE_DISABLE_X11 option is not set
Run TDataXtd_test only if OCE_DISABLE_X11 option is not set

It depends on TKCAF and TKXCAF modules which are built only
if OCE_DISABLE_X11 is not set.

Moreover TKXCAF is built by DATA_EXCHANGE and not OCAF, so
we must check against DATA_EXCHANGE instead of OCAF.

EvgeneOskin/oce,finetjul/oce,tpaviot/oce,heartvalve/oce,heartvalve/oce,Tridify/oce,BenoitPerrot/oce,Tech-XCorp/oce,mathstuf/oce,BenoitPerrot/oce,finetjul/oce,tpaviot/oce,Tech-XCorp/oce,BenoitPerrot/oce,Tridify/oce,EvgeneOskin/oce,heartvalve/oce,mathstuf/oce,heartvalve/oce,tpaviot/oce,Tridify/oce,BenoitPerrot/oce,EvgeneOskin/oce,mathstuf/oce,Tech-XCorp/oce,tpaviot/oce,Tech-XCorp/oce,finetjul/oce,Tech-XCorp/oce,mathstuf/oce,finetjul/oce,BenoitPerrot/oce,EvgeneOskin/oce,tpaviot/oce,finetjul/oce,Tridify/oce,mathstuf/oce,EvgeneOskin/oce,heartvalve/oce,Tridify/oce