Suggestion: Expose Hierarchy Level for All Hierarchical Card Types

[arturcaetano]

Context

Some card types (e.g. Business Capability) expose the hierarchy level as attribute (internally calculated field), while other card types with Parent-Child hierarchies do not. This means it is not possible to filter according to hierarchy level or use this attribute in calculations.

Suggested Solution

For all card types with Parent-Child hierarchy enabled:

• expose the hierarchy level as a (calculated / built-in) attribute;
• allow the attribute to be added to the Card UI, used in filters, calculations and reports.

[vincentmakes]

Part of the same epic as discussion #812 - added in v2.15.0

The hierarchy level is displayed automatically in any card with a hierarchy. For custom cards, it ends up in a "General" section.