Implemented automatic rotation for all tile blocks. You can still use
facing properties in model files, if you want to.
Also, some added some fixes and improvements.
Enabled block states ignoring. File with same name as block state, but
with .ignore.json extension. Although it's json extension, it is NOT IN
JSON FORMAT!!! Each line is name of property to ignore. Refers to #10.
Reduces the visibility of all fields to private and create setters/getters
when necessary. Exceptions are fields with GuiSync as these need to be
public.
Reduces the visibility of internal methods to private/protected/default when possible.
elix-x