Adds an example of TGA image using RLE16

Adds an example of TGA image using RLE16 in order to confirm that the bug 982 is fixed. Please notice that I still get an exception when running it:
TextureData: TextureData[256x256, y-flip false, internFormat 0x8058, PixelAttributes[comp 4, fmt 0x80e1, type 0x1401, bytesPerPixel 4], border 0, estSize 262144, alignment 1, rowlen 0
java.lang.NullPointerException
	at jogamp.newt.driver.opengl.JoglUtilPNGIcon.arrayToX11BGRAImages(JoglUtilPNGIcon.java:49)
	at jogamp.newt.driver.PNGIcon.arrayToX11BGRAImages(PNGIcon.java:76)
	at jogamp.newt.driver.x11.WindowDriver.<clinit>(WindowDriver.java:80)
	at jogamp.newt.driver.x11.DisplayDriver.initIDs0(Native Method)
	at jogamp.newt.driver.x11.DisplayDriver.<clinit>(DisplayDriver.java:56)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:190)
	at com.jogamp.newt.NewtFactory.getCustomClass(NewtFactory.java:111)
	at jogamp.newt.DisplayImpl.getDisplayClass(DisplayImpl.java:259)
	at jogamp.newt.DisplayImpl.create(DisplayImpl.java:269)
	at com.jogamp.newt.NewtFactory.createDisplay(NewtFactory.java:203)
	at com.jogamp.newt.NewtFactory.createWindowImpl(NewtFactory.java:309)
	at com.jogamp.newt.NewtFactory.createWindow(NewtFactory.java:234)
	at com.jogamp.newt.opengl.GLWindow.create(GLWindow.java:156)
	at com.jogamp.opengl.test.junit.jogl.util.texture.TestTGATextureFromFileNEWT.testImpl(TestTGATextureFromFileNEWT.java:115)
	at com.jogamp.opengl.test.junit.jogl.util.texture.TestTGATextureFromFileNEWT.test01RLE16__GL2(TestTGATextureFromFileNEWT.java:174)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)