ESelection::All() select all text
ESelection::NotFound() sets seletion to not found state
ESelection::NoSelection() sets selection to no / invalid selection
Introduce max paragraph and position constants in ESelection,
use for EE_PARA_APPEND, EE_PARA_ALL, EE_PARA_MAX_COUNT,
EE_TEXTPOS_ALL, EE_TEXTPOS_MAX_COUNT.
Also simplify some ESelection constructs.
Change-Id: Ib110c5a730a1deabe4f988baa5a600249b3a31e9
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/169356
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>
Tested-by: Jenkins
c32128b35d