Support path translation for remote debugging path name mismatch

[sugi]

This patch add -t --path-translation option to resolve path mismatch on remote debugging with network mounted filesystem.

For example:

• A ruby app is running on Linux host A under /home/you/app
• You use IDE on Windows to edit the app on network mounted host A, /home/you to drive H: via samba.

In this case, some IDE can make debug connection, but they will send break point with local path (H:\app...).

To resolve this issue, I propose to add path translation option on rdebug-ide side, like;

rdebug-ide -t '\=/' -t 'H:=/home/you' app/runner

This means replace string in path with two rules (\ -> / and H: -> /home/you). It make debug works on IDE that has no path mapping feature.