Handle dimensions for promoted variables

[peverwhee]

Description

Handle edge case where variable dimensions weren't getting added to the init phase calling list for allocation of promoted, suite-level variables.

Also includes logic to use horizontal_dimension in allocate statement for run-time only variables (with dimension horizontal_loop_extent)

Changes

• scripts/ccpp_suite.py: Add dimensions of promoted variable to init group calling list; use horizontal_dimension instead of horizontal_loop_extent if necessary
• scripts/suite_objects.py: Use horizontal_dimension instead of horizonal_loop_extent for allocation of promoted, suite-level variables
• test/capgen_test/*: add run-time only variables that need to be promoted and allocated (in run phase of two separate groups and used nowhere else)

User interface changes?: No

Fixes

closes #559

Testing

Test added for runtime-only promoted variables