Use inmem check box to help determine embedded ecard visibility (resubmission)

[StoneMoney]

Functionality can be tested at https://donate.spcai.org/page/179187/donate/1?assets=dev-nick

This feature adds the requireInMemCheckbox option in the EngridEmbeddedEcard configuration.
It will toggle the visibility of the ecard embed based on the both the state of the radio buttons (supporter.NOT_TAGGED_11) and the transaction.inmem checkbox.

Behavior table is as follows:

requireInMemCheckbox	In Mem Checked	E-Card Radio Checked	Visible?
Y	N	N	N
Y	Y	N	N
Y	N	Y	N
Y	Y	Y	Y
N	N	N	N
N	Y	N	N
N	N	Y	Y - Problem Case!
N	Y	Y	Y

[MichaelT372]

This looks good.

Noting the limitation that the setup specifically on SPCAI requires additional custom code but what is submitted here works for a scenario where we need both checkboxes checked and the ecard checkbox is only revealed after the In Mem checkbox is hidden, which works fine for this use case and does not break any BC.