added acess methods

-get current pipeline
- get current camera
- get res list
- set current camera 
-set current pipeline

Main/src/main/java/Exceptions/NoCameraException.java

@@ -0,0 +1,7 @@
+package Exceptions;
+
+public class NoCameraException extends Exception {
+    public NoCameraException(){
+        super("No Camera Connected");
+    }
+}