add support for CDS usage in data declarations

[MagPasulke]

DATA some_tabular_data      TYPE TABLE OF zasis_i_domain_fix_values.
DATA some_data TYPE zasis_i_domain_fix_values.

where zasis_i_* is a CDS view.

gives:

unknown_types, ZASIS_I_DOMAIN_FIX_VALUES not found, lookup, zasis_cl_get_domain_fix_values.clas.abap:63
unknown_types, Variable "RESULT" contains unknown: ZASIS_I_DOMAIN_FIX_VALUES not found, lookup, zasis_cl_get_domain_fix_values.clas.abap:25