[Rogo] Now detects when library info cache references unavailable libraries
[Rogo] Now detects when library info cache references unavailable libraries

- OLD: if a library was updated (e.g. jpeg 9c to 9d), Rogo would just crash on link
  - Rogo was using cached info about the old library.
- NEW: checks each cached library filepath when referenced to make sure it still exists.
  - If it does not exist, the library is searched for and/or installed.

Plasmaworks/Rogue,Plasmaworks/Rogue,Plasmaworks/Rogue,AbePralle/Rogue,AbePralle/Rogue,Plasmaworks/Rogue