Search API from codetoart/r2-streamer-kotlin now use window.find() in…

…stead of Rangy solution.

- FolioReader migrated to AndroidX.

- Search API calls made asynchronous.

ReadLocator and SearchLocator using CFI

- r2-streamer-java replaced with r2-streamer-kotlin and r2-shared-kotlin

- WebViewMarker replaced with Native text selection popup.
- Media Overlay feature temporarily unavailable, see KNOWN_ISSUES.md for more information.

Added slovak and czech translations

Reduced approx 15k methods to avoid 64k method limit

Close API

Merge pull request #256 from codetoart/master

Search implementation - v0.4.1

Merge pull request #228 from codetoart/master

Horizontal scroll code for v0.4.0

Merge pull request #206 from codetoart/master

used Zip4j library and bug fixed