refactor: add back time preferences

pom.xml

@@ -10,7 +10,7 @@
     </parent>
     <groupId>io.github.fontysvenlo.alda</groupId>
     <artifactId>appointmentplanner_api</artifactId>
-    <version>1.1</version>
+    <version>1.2</version>
     <packaging>jar</packaging>
     <name>ALDA AppointmentPlanner API</name>
     <properties>

src/main/java/appointmentplanner/api/Priority.java

@@ -9,5 +9,16 @@
  * @author Pieter van den Hombergh {@code [email protected]}
  */
 public enum Priority {
-    LOW, MEDIUM, HIGH
+    /**
+     * Low priority
+     */
+    LOW,
+    /**
+     * Medium priority
+     */
+    MEDIUM,
+    /**
+     * High priority
+     */
+    HIGH
 }

src/main/java/appointmentplanner/api/TimePreference.java

@@ -24,5 +24,13 @@ public enum TimePreference {
      * 
      * In case no time preference is specified, this is the default.
      */
-    UNSPECIFIED
+    UNSPECIFIED,
+    /**
+     * Latest before a given time (the whole appointment should fit before the given time).
+     */
+    LATEST_BEFORE,
+    /**
+     * Earliest after a given time (the appointment can also start at the given time).
+     */
+    EARLIEST_AFTER;
 }

src/main/java/module-info.java

@@ -1,3 +1,6 @@
+/**
+ * The main appointment planner module
+ */
 module appointmenplanner.api {
     exports appointmentplanner.api;
 }