traditional Chinese localization, string extraction, icon clone and resize

[metalnow]

1. add zh-tw for traditional Chinese Language
2. extract some hard-code string to resource file
3. clone rssi-icon to radio-icon and resize radio-icon to the same size with other menu-icon

[m4gr3d]

@metalnow great job. Thanks for contribution!

[metalnow]

My pleasure. I am glad to help. Though, I am a newbie to github. If there is something wrong for my PR, feel free to comment it. I will do my best.

[m4gr3d]

@metalnow sorry for the delay, but I'm just getting to reviewing your PR now. I'll add comments if I find some issues.
Let me know if you have any question.

[m4gr3d]

@metalnow as noted by the comment above, instead of repeating the content of this file, extract the string item in these string arrays to the strings.xml file, and provide their translation in a matching localized strings.xml file.

[metalnow]

Okey. I didn't notice that. I should be more careful.

[metalnow]

@ne0fhyk I appreciated your review. After confirming the feedback, what should I do? Revise and put another PR, right?

[m4gr3d]

@metalnow you can commit the updates/fixes to the same branch, and it'll be automatically included as part of the current PR.
Though, we won't get notified when you're all done, so let me know when your updates are complete. Thanks!

[metalnow]

@ne0fhyk Thank you for guidance. I updated the string.xml for chinese to the latest and remove array.xml from values-zh-rTW folder. I also simplify the code for accessing variable "drone" and String-resource. Please help me merging my PR.

[m4gr3d]

@metalnow thanks for the update. Everything looks good!