contract from business variable on a pool

create a page with an expression viewer that display the generated
script according to the selected data.

BS-14312 as dave I want to view or/and edit the script when creating a
contract from business variable on a pool

create a page with an expression viewer that display the generated
script according to the selected data.

BS-14278 Improve generated name of the initialization script

disable next button when manually generation is selected


BS-14312 as dave I want to view or/and edit the script when creating a
contract from business variable on a pool
BS-14312 as dave I want to view or/and edit the script when creating a
contract from business variable on a pool

refactoring + correction of tests