Additions for improved BlockType-system (adds hay, ender-portal-frame, improved lever-facing)

This changes are needed for this PR: https://github.com/GlowstoneMC/Glowstone/pull/566 (improved Block/ItemType-System).

Adds:
- EnderPortalFrame-MaterialData
- HayBlock-MaterialData

Modifies:
- Lever-MaterialData: setFacingDirection takes now notice of BlockFace.UP/DOWN. Old behaviour was to ignore this values silenty.