Changes

** Implements <code><nowiki>Property<E></nowiki></code>. Defines a property that can take on the values of an Enum class.

** Implements <code><nowiki>Property<E></nowiki></code>. Defines a property that can take on the values of an Enum class.

** Created by calling <code><nowiki>EnumProperty.create(String propertyName, Class<E> enumClass)</nowiki></code>.

** Created by calling <code><nowiki>EnumProperty.create(String propertyName, Class<E> enumClass)</nowiki></code>.

** It is also possible to use only a subset of the Enum values (e.g. <code><nowiki>RailShape</nowiki></code>'s that can only ascend and not turn). See the overloads of <code><nowiki>EnumProperty.create</nowiki></code>.

** It is also possible to use only a subset of the Enum values (e.g. <code><nowiki>RailShape</nowiki></code>s that can only ascend and not turn). See the overloads of <code><nowiki>EnumProperty.create</nowiki></code>.

* <code><nowiki>DirectionProperty</nowiki></code>

* <code><nowiki>DirectionProperty</nowiki></code>

** This is a convenience implementation of <code><nowiki>EnumProperty<Direction></nowiki></code>

** This is a convenience implementation of <code><nowiki>EnumProperty<Direction></nowiki></code>