Add several new classes to samples - Yuri said that it is enough

Author: EgorkaKulikov

utbot-junit-contest/src/main/resources/classes/samples/list

@@ -40,4 +40,7 @@ org.usvm.samples.invokes.NativeExample
 org.usvm.samples.invokes.SimpleInterfaceExample
 org.usvm.samples.invokes.StaticInvokeExample
 org.usvm.samples.invokes.VirtualInvokeExample
-org.usvm.samples.invokes.VirtualInvokeNestedIteExample
+org.usvm.samples.invokes.VirtualInvokeNestedIteExample
+org.usvm.samples.loops.While
+org.usvm.samples.enums.SimpleEnumExample
+org.usvm.samples.enums.ComplexEnumExamples