NTV-475: Migrate XauthBody.java to kotlin and deprecate Autoparcel

[hadia]

📲 What

• Migrated to kotlin
• Adopt @parcelize

🤔 Why

• Remove all references to the AutoParcel library in Models, eventually, we will be able to remove that dependency.

📋 QA

Test login with 2FA

Story 📖

https://kickstarter.atlassian.net/browse/NTV-475

[codecov]

Codecov Report

Merging #1593 (f5dbbec) into master (2ba954b) will increase coverage by 0.05%.
The diff coverage is 96.96%.

@@             Coverage Diff              @@
##             master    #1593      +/-   ##
============================================
+ Coverage     77.46%   77.51%   +0.05%     
- Complexity     1656     1665       +9     
============================================
  Files           356      356              
  Lines         15218    15248      +30     
  Branches       1717     1721       +4     
============================================
+ Hits          11788    11820      +32     
+ Misses         2509     2506       -3     
- Partials        921      922       +1     

Impacted Files	Coverage Δ
.../com/kickstarter/services/apirequests/XauthBody.kt	96.96% <96.96%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 2ba954b...f5dbbec. Read the comment docs.