[FEATURE] DATE and DATETIME functions for buildDefinition

[JoernBerkefeld]

sometimes you need to create elements, say, events, with the same name and key as before but you don't want to override whats there already. SFMC Package Manager auto-attaches datetime strings for that purpose. in more controlled deployments, dates would likely suffice.

idea:

{
   "name": "myName{{{DATE()}}}"
   "key": "myKey{{{DATETIME()}}}"
}

buildTemplate would then auto-populate markets with a value for "DATE()" and "DATETIME()":

• DATE() = "2024-07-02"
• DATETIME() = "2024-07-02 09:14:52"