Function parseTopicLevels

parseTopicLevels(topic: string): string[]
Splits a topic into levels.
Parameters
- topic: string
  The topic name or filter
Returns string[]
Array of topic levels
Example
```
parseTopicLevels("sport/tennis/player1") // ["sport", "tennis", "player1"]
parseTopicLevels("sport/+/player1") // ["sport", "+", "player1"]
```
- Defined in topic.ts:371