Return a table with all playing animations
Takes a boolean parameter, where if true, animations in the HOLDING play state will be included in the table
  overload 1:
                        
animations:getPlaying()  
  | Method Property | Fluent Description | Representation | 
|---|
 | Return Value | a table |  | 
 
  overload 2:
                        
animations:getPlaying(hold)  
  | Method Property | Fluent Description | Representation | 
|---|
 | hold accepts | a Boolean |  | 
| Return Value | a table |  |