XF2 Add-on [Liam W] (RIP) Split Reply Permission 2.0.3

[virgilio183]

This simple add-on adds 2 new forum permissions:

• Post replies to own threads
• Post replies to threads by others

This allows further granularity in permissions than the existing Post replies permission.

Note: The new permissions depend on the 'Post replies' permission. Please be sure to keep that granted.