Add Crypto Tests & Reorganize files

[srirambv]

Fixes: #425

Changes in the PR

• Added Crypto Wallets Regression test cases for Desktop/Android/iOS
• Reorganized files into folders
  • Moved bookmark files under SampleBookmarks/
  • Moved all Wiki template files under WikiTemplate/
  • Separated out each platform/feature wiki file under nested folder inside WikiTemplate root folder

Review Request

• Testrun generator

  • @brave/legacy_qa please review the brave_test_generator.py file. Please check for path for existing testrun and make sure nothing errors out.

• Crypto Wallet (Desktop)

  • @Douglashdaniel @yrliou @onyb @jamesmudgett @josheleonard @cypt4 @supermassive please review WikiTemplate/Crypto/wikitemplate-cryptoDesktop.md. Test added based on the new onboarding flow and existing feature. Pending tasks is for the Buy/Send/Swap widget. Will update it once the new Swap UI lands.

• Crypto Wallet (Android)

  • @Pavneet-Sing @SergeyZhukovsky please review WikiTemplate/Crypto/wikitemplate-cryptoAndroid.md. Please suggest any areas that may regress and needs to be checked

• Crypto Wallet (iOS)

  • @nuo-xu @StephenHeaps please review WikiTemplate/Crypto/wikitemplate-cryptoiOS.md. Please suggest any areas that may regress and needs to be checked. Will add a follow up PR if anything is missing/needs update

[josheleonard]

Found a few nits for the Wallet Desktop checklist. Looks good overall

[stephendonner]

r+ from me, thanks for addressing my nits and feedback

[SergeyZhukovsky]

++ for Android

[josheleonard]

++

[kjozwiak]

LGTM 👍