Rpijs: Created rpijs library.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Rpijs: Keep updating only if callback returns true.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Rpijs: Advanced formatting options for objects.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>