Add ADaM product standards to StandardTypes CLI gate

[antonybevan]

Summary

StandardTypes is the allow-list the CLI uses to validate -s/--standard. When
--custom-standard is not set, core.py rejects any value not in
StandardTypes.values() and exits with code 2. The enum lists adamig but not the
other six ADaM products defined in ADAM_PRODUCTS
(cdisc_rules_engine/constants/adam_products.py): adam-adae, adam-md,
adam-nca, adam-occds, adam-tte, adam-poppk.

Those six are already handled by normalize_standard_input() in
cdisc_rules_engine/utilities/utils.py, which maps any value in ADAM_PRODUCTS to
("adam", "<product>-<version>"). Because the gate does not list them, a command
such as -s adam-tte -v 1-0 is rejected before the engine runs, even though the
engine supports it.

This adds the six products to StandardTypes, completing the normalization started
in #1733 (which added adamig and the sendig-* products). The values mirror
ADAM_PRODUCTS.

Reproduction (current main)

core validate -s adam-tte -v 1-0 -d <datasets> -ft xpt ...
# Standard 'adam-tte' is not a supported standard. ... (exit code 2)

Changes

• cdisc_rules_engine/enums/standard_types.py: add the six adam-* products,
  following the pattern used for the sendig-* products.
• tests/unit/test_utilities/test_standard_types_adam.py: assert that every
  ADAM_PRODUCTS entry is a valid StandardTypes value, so the gate and the
  product list cannot drift apart again.

Testing

• black and flake8 pass on both files.
• The new test passes.

[SFJohnson24]

this PR correctly implements the missing adam products in the standard types