Implement setting for default find strings to be ANSI or Unicode

[Gitoffthelawn]

Although it's a hex editor, when I'm searching for strings, they are usually ANSI or Unicode. As such, please implement a setting to allow those to be used by default for the find (search) functionality.

Alternatively, it could just remember the last type used.

[chcg]

@Gitoffthelawn In my tests it seems to remember the last state already during the active session. So do you mean the plugin should remember the last type also between N++ sessions?

[Gitoffthelawn]

@chcg Exactly.