Update store image file tests

*Removed upload_image_file module
-Updated and moved tests to store_image_file module
*Removed upload_image_file_negative
-Updated and moved tests to store_image_file_negative module
*Updated store_image_file module
-Updated method call
-Updated image to be validated
-Moved and updated immage creations to setup class
*Added store_image_file_negative module
-Removed unnecessary code
-Moved image creations to setup class

Change-Id: I8cb20c4c15493487876c7b23649e2235e6e1ae4f
Merge "Update store image file tests"