This introduces a consistent and more obvious naming in the embedded
db selector when creating a new .odb file in Base.

Change-Id: I01a60360d3278d9d9e6fa16283a7d3d7c2a5d7fc
Reviewed-on: https://gerrit.libreoffice.org/5420Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>