Converted the following defences into the defence database:

Temperance
venom_resistance
waterbreathing
speed
heatsight
vigilance
treewatch
deathsight
skywatch
thirdeye
telesense

Be on the watch out for potential bugs with those defences! You'll need
to reapply those defences if you had them up at the time of this
changelog.

Penned by my hand on an unknown date.