Removed matlab/utilities/tests subfolder.
Added m-unit-tests as a submodule.
Updated path in dynare_config.

For m-unit-tests module.
Replaced calls to dyn_assert by calls to dassert.

This routine is used to compare objects i -n unit tests.
Force type consistency when comparing actual results and expected
results in unit tests (use logical type).
Updated m-unit-tests module.
Adapated internals routine (name of dynTest routine has changed).