Download BrightScript Emulator 2.1.1

## Release Changes

This release adds new settings tab to allow mounting and unmounting an external storage volume (ext1:/) in the BrightScript Simulator, allowing apps to access files to this volume as they would on a real Roku device. It also includes several fixes to the SceneGraph implementation, improving stability and compatibility with Roku applications.

- Added support to mount/unmount an External volume (ext1:/) by @lvcabral in #235
- Prevent duplicate brs-engine version on About dialog on reset by @lvcabral in #236
- Upgraded brs-engine to v2.0.3 (with RSG extension), bringing the following changes
* (api) Fixed getWorkerLibPath to avoid duplicate parameters
* (api) Fixed: Deleted registry keys not being removed from LocalStorage
* (api) Improved SceneGraph app detection
* (brs) Fixed String coercion to handle isStringComp objects
* (brs) Changed BrsExtension signature to include version
* (rsg) Fixed: Video UI header removed too soon
* (rsg) Prevent crash when custom fonts are missing
* (rsg) Made ArrayGrid based nodes to be aware of content changes
* (rsg) Fixed roSGNode methods setField and addFields to properly handle ContentNode
* (rsg) Removed usage of reflection to build subtypeHierarchy in Node
* (brs) Added support to dynamically mount/unmount ext1: volume
* (brs) Changed roFileSystem.getVolumeInfo() to properly return ext1:/ information
* (rsg) Implemented support for change field in Node
* (rsg) Changed Task to update existing Node fields to preserve references
* (rsg) Fixed Node environment hostNode initialization
* (rsg) Fixed Node.callFunc() to not be case sensitive

Full Changelog: https://github.com/lvcabral/brs-desktop/compare/v2.1.0...v2.1.1