Add TControl.ClientToParent and TControl.ParentToClient

Original Reporter info from Mantis: djenkins @dfjenkins

• Reporter name: David Jenkins

Description:

For VCL compatibility we'd like to add TControl.ClientToParent and TControl.ParentToClient

Patches against rev 36681 attached

Mantis conversion info:

• Mantis ID: 21763
• Version: 0.9.30.5 (SVN)
• Fixed in version: 1.1 (SVN)
• Fixed in revision: 36775 (#c11192b6)
• Monitored by: » @dfjenkins (David Jenkins)
• Target version: 1.0.0
• LazTarget: 1.0