#5289: Moves modules to subfolders under library

[ericdecanini]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Moves these modules to subfolders under library: (were previously modules at project root)

• attachment-viewer
• diff-match-patch
• multipicker

Motivation and context

Closes #5289

Screenshots / GIFs

Tests

Smoke test app

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes has been tested on an Android device or Android emulator with API 21
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request includes a new file under ./changelog.d. See https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR
• If you have modified the screen flow, or added new screens to the application, you have updated the test UiAllScreensSanityTest.allScreensTest()

[github-actions]

Matrix SDK

Integration Tests Results:

• [org.matrix.android.sdk.session]
  passed=
• [org.matrix.android.sdk.account]
  passed=
• [org.matrix.android.sdk.internal]
  passed=
• [org.matrix.android.sdk.ordering]
  passed=
• [org.matrix.android.sdk.PermalinkParserTest]
  passed=

[github-actions]

Unit Test Results

  84 files  ±0    84 suites  ±0   55s ⏱️ -14s
157 tests ±0  157 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
504 runs  ±0  504 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 44452c9. ± Comparison against base commit bff663d.

[bmarty]

Thanks!