Register leaves and logs to additional oredicts

[elifoster]

logMaterial and treeLeavesMaterial are the more conventional tag names for logs and leaves. The lack of these entries was causing issues with MFR trees in other mods (namely Flaxbeard's Steam Power).

[skyboy]

Blocks have functions for determining if they are logs and leaves in-world.

Additionally, the oredict entries MFR is using have been used for many years: they are the standard for rubber woods.

[elifoster]

That's why I didn't remove any entries.