[C++] Close counters and call unavailable handlers in forced close method.
[C++] Close counters and call unavailable handlers in forced close method.

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