deprecate get/set_shared_data API Session or transaction data must be used instead. We must forward .transaction_data to web/request from which it was missing (this is indeed a _cw object API). Closes #3799036.

from os.path import join
assert __file__.endswith(join('scripts', 'script1.py')), __file__
assert '__main__' == __name__, __name__
assert [] == __args__, __args__