- Added next/n command in debugger so that the debug flow looks more like gdb

-> modified cont command to reflect this too

- Removed subtle bug in debug state machine that would not reinstall breakpoint if step was enabled in the middle
-> modularized code to be able to reuse e2dbg_breakpoint_reinstall()

- Added capability to foreach to record expression-typed values back in iterated list.

- Removed many gcc warnings