add DeclarativeAgenda to KieBaseOptions configurable via kmodule.xml
(cherry picked from commit 92c3082670d3bb2c4ade16460c6b6001a17cd1ed)
Javadoc fixes: default event processing option is CLOUD + other small typos
(cherry picked from commit 8ad8e17a4b8c52ae807e37c95d2759f77189e8da)
-Refactored docs, for new simplified layout