Fixed bug when setting breakpoint by double-click

git-svn-id: https://yabause.svn.sourceforge.net/svnroot/yabause/trunk@3091 d7be59e3-070e-4b9a-85a1-4646befae34d
-Fixed a couple of bugs that some situations could cause loading save state to crash
-Made memory editor accessible from cpu debug windows

git-svn-id: https://yabause.svn.sourceforge.net/svnroot/yabause/trunk@3092 d7be59e3-070e-4b9a-85a1-4646befae34d