Holographic Capture Regions

Holographic Capture Regions v1.3

- Added sizes 256x512 and 384x512 at the request of @Gravidea
- Reworked the square cap regions 256x256 and larger to standardize the corner roundness
- Fixed the rectangular shaped regions to not have stretched corners
- Updated prop zoo
Accidentally forgotten about the vmt's reference to the folder they were previously stored in. This would cause you to unlock a 4th rare hologram type with missing textures which has now been fixed.
Turns out I forgot a folder for the materials path so textures would not properly load, this has now been fixed. (I also completely misspelt region when rushing the fix but that's not worth trying to reupload again)