SCI: Fix script bug #3615118 in Crazy Nick's Laura Bow
SCI: Handle objects with a dot in their name

An example is the object 'dominoes.opt' in Hoyle 3, script 101
SCI: Fix script bug #3615120 - "SCI: Crazy Nick Laura Bow - kReadNumber signature mismatch"
SCI: Fix script bug #3615130 - "SCI: Hoyle3 - Uninitialized read error"