added todos for pl0
added todos for pl0

cdglabs/ohm,cdglabs/ohm,harc/ohm,anfedorov/ohm,DanielTomlinson/ohm,cdglabs/ohm,coopsource/ohm,coopsource/ohm,harc/ohm,harc/ohm,anfedorov/ohm,DanielTomlinson/ohm,coopsource/ohm,anfedorov/ohm,DanielTomlinson/ohm