Broken breakpoints are sent by server if no cursor event has been received from client

[fmagin]

GDBReceiver.relocate is initialized as 0, and used as a base in https://github.com/Comsecuris/gdbghidra/blob/c817839da4fe7fcb01893fb423bd55157892e741/src/main/java/gdbghidra/GDBReceiver.java#L195 when a breakpoint is set. If no cursor event is received that updates .relocate prior to toggling a breakpoint, the address sent to GDB will be wrong.

Ghidra Version: https://github.com/NationalSecurityAgency/ghidra/tree/adedcde30f893fe3f48291f15866aed05df04fc9 gdbghidra Version: c817839da4fe7fcb01893fb423bd55157892e741