some changes
	new file:   eZLib/earthTexture.jpg
	new file:   eZLib/moonTexture.jpg
	modified:   eZLib/src/eZLib/Physics/Force.java
	modified:   eZLib/src/eZLib/Physics/Gravity.java
	modified:   eZLib/src/eZLib/Study/SunSysSketch.java
	new file:   eZLib/src/eZLib/Study/sun_texture.jpg
	new file:   eZLib/src/eZLib/Study/sun_texture.png
	modified:   eZLib/src/eZLib/Vector.java
	new file:   eZLib/sun_text.jpg
	new file:   eZLib/sun_texture.jpg
	new file:   eZLib/sun_texture.png
	new file:   eZLib/venus_texture.jpg
	new file:   eZLib/venus_texture.png