[c++]: Added Image::joiningPosition().
[c++]: Added Image::joiningPosition().

galderz/Aeron,mikeb01/Aeron,EvilMcJerkface/Aeron,EvilMcJerkface/Aeron,real-logic/Aeron,EvilMcJerkface/Aeron,real-logic/Aeron,mikeb01/Aeron,EvilMcJerkface/Aeron,real-logic/Aeron,oleksiyp/Aeron,oleksiyp/Aeron,mikeb01/Aeron,galderz/Aeron,galderz/Aeron,mikeb01/Aeron,oleksiyp/Aeron,real-logic/Aeron,galderz/Aeron