Fix regression from #1727

The private and board libs did not really work

Author: jan

io.sloeber.core/src/io/sloeber/arduinoFramework/internal/ArduinoLibraryVersion.java

@@ -223,4 +223,12 @@ public IPath getFQN() {
 	public boolean equals(IArduinoLibraryVersion other) {
 		return myFQN.equals(other.getFQN());
 	}
+
+	@Override
+	public boolean equals(Object other) {
+		if(other instanceof IArduinoLibraryVersion) {
+			return equals((IArduinoLibraryVersion) other);
+		}
+		return false;
+	}
 }

io.sloeber.core/src/io/sloeber/core/internal/ArduinoHardwareLibrary.java

@@ -94,6 +94,9 @@ public boolean equals(Object other) {
 
 	@Override
 	public int compareTo(IArduinoLibraryVersion other) {
+		if (other == null) {
+			return 1;
+		}
 		return myFQN.toPortableString().compareTo(other.getFQN().toPortableString());
 	}
 

io.sloeber.core/src/io/sloeber/core/internal/ArduinoPrivateHardwareLibraryVersion.java

@@ -87,8 +87,19 @@ public boolean equals(IArduinoLibraryVersion other) {
 	}
 
 	@Override
-	public int compareTo(IArduinoLibraryVersion o) {
-		return 0;
+	public boolean equals(Object other) {
+		if(other instanceof IArduinoLibraryVersion) {
+			return equals((IArduinoLibraryVersion) other);
+		}
+		return false;
+	}
+
+	@Override
+	public int compareTo(IArduinoLibraryVersion other) {
+		if (other == null) {
+			return 1;
+		}
+		return myFQN.toPortableString().compareTo(other.getFQN().toPortableString());
 	}
 
 	@Override