create registerInfo model for sign up
rearrange layout for signup screen
Merge branch 'master' of https://github.com/dst-hackathon/socialradar-android

# By kaotangP
# Via kaotangP
* 'master' of https://github.com/dst-hackathon/socialradar-android:
  Correct the LoginActivity path and title.
  Correct the class name of SignUp Activity.
  Add LoginActivity with layout, update AndroidManifest to add a LoginActivity, update strings.xml and add images and rounded styles.