Added Greek, Korean and nepali language translation

[Rivalle]

Description

Please include a summary of the change and which issue is fixed. List any dependencies that are required for this change. If there are any UI change, please include the screenshots also.

Fixes #(issue)

Type of change

Just put an x in the [] which are valid.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes.

• [x] ./gradlew assembleDebug assembleRelease
• [x] ./gradlew checkstyle

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [ ] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [ ] My changes generate no new warnings

[codeclimate[bot]]

Code Climate has analyzed commit 528a5230 and detected 0 issues on this pull request.

View more on Code Climate.