[video_player] Pause video when it completes (flutter#3727)

[various] Prepare plugin repo for binding API improvements (flutter#4137

)

[video_player] Fixed HLS Streams on iOS (flutter#3360)

Refactor `FLTCMTimeToMillis` to support indefinite streams.

Co-authored-by: Mike Diarmid <[email protected]>

[plugin_platform_interface] Fix README broken link (flutter#4143)

[in_app_purchase] Add currencySymbol to ProductDetails (flutter#4115)

[in_app_purchase] Fix crash when retrieveReceiptWithError gives an er…

…ror. (flutter#4138)

[video_player] Update to ExoPlayer 2.14.1 (flutter#4141)

Update the ExoPlayer dependency to the latest version, and remove the dependency on the deprecated Bintray server. This should resolve issues with building video_player due to 403s from bintray that have been breaking presubmits for all PRs.

Prepare plugin repo for binding API improvements. (flutter#4136)

Prepare plugin repo for binding API improvements. (flutter#4136)

[in_app_purchase] Initialize SKError with correct data type (flutter#…

…4113)