fix(glass): respect transparent blocks that prevent movement

World#getHighestBlockAt(location) ignores blocks which allow light to pass. Fix this with a manual iteration upwards from the torso until hitting either an occupied Block or the World#getMaxHeight(). Add a test which verifies expected Bukkit behavior.
chore: bump version to 0.1.0
feat(armor): add damage prevention by using full leather armor set

When wearing a full leather armor set, HungerRain's food damage is prevented. Instead, the damage is dealt to the armor at a lower (configurable) frequency.
docs(armor): update documentation for armor feature