Expose Rule Entry information within GRL "then" clause

[ngmarcus]

Note: If such a feature already exists, appreciate if anyone can help provide usage information.

Is your feature request related to a problem? Please describe.
As a client, I want to be able to identify which rule entry within the knowledge base had its "then" condition triggered.

For example, if I want to attach a message indicating which rules were executed, currently I would need to hard-code the rule name manually.

Current way:

rule test_rule_name "test_rule_description" salience 1 {
    when
		1 == 1
    then
		Test.DoSomething("test_rule_name"); // repeated rule name here
}

Ideally, I can simply call a method that returns the rule name. For example:

rule test_rule_name "test_rule_description" salience 1 {
    when
		1 == 1
    then
		Test.DoSomething(RuleEntry.GetRuleName()); // if rule name changes, this part doesn't need to change
}

Describe the solution you'd like
A default, reserved parameter inside DataContext named "RuleEntry" that contains the rule entry struct itself (or a similar struct that provides relevant data via getter methods, to prevent modification on the rule entry itself). This should be initialised each time we start a new rule execution.

Describe alternatives you've considered
This is more of an improvement to allow better rule definition design that is in-line with DRY principle.