PowerD.html - OO programming

Important:
It currently doesn't work correctly, because of heavy changing in internal function definition.
Description:
Object Oriented programming (OOP) is currently very limited and will be highly improved in future. If You define an OOP variable like:
```
  DEF xyz:PTR TO obj
```
where obj is defined in same way as normal OBJECT. This allows You to define OOP functions to all OBJECTs (like Window, IntuiMessage, etc.). These functions must be defined as following:
```
  PROC name(args)(result) OF obj
```
where name, args and result are defined in same way as normal procedures and obj means, that this function will be attached to OBJECT called obj. If function is attached to an OBJECT, it allows You to use OBJECT's items as normal variables:
```
  OBJECT testobj
    name[64]:CHAR,
    count:LONG,
    weight:DOUBLE

  PROC SetName(new:PTR TO CHAR) OF testobj
    StrCopy(name,new)
  ENDPROC
  PROC Reset() OF testobj
    StrCopy(name,'Unnamed')
    count:=100
    weight:=12.3
  ENDPROC
  PROC Total()(DOUBLE) OF testobj IS count*weight
  
  PROC main()
    DEF ob:testobj
    ob.Reset()
    ob.SetName('MarK')
    ob.weight:=78.1
    PrintF('Total: \d\n',ob.Total())
  ENDPROC
```