Added FileBrowser.CustomSearchHandler event

Fixed WaitForSaveDialog no longer working on Android (fixed #107)

Disabled "Parse Escape Characters" of all TextMeshProUGUIs to avoid e…

…dge cases (fixed #106)

- Fixed UnauthorizedAccessException on iOS

- Tiny performance optimization

Added FileBrowser.CanDeleteFiles and CanRenameFiles properties to dis…

…able deleting/renaming files via file browser UI

- BREAKING CHANGE: Replaced RequestPermission with RequestPermissionA…

…sync (see yasirkula/UnityNativeGallery#343)

- BREAKING CHANGE: CheckPermission returns bool instead of Permission (see yasirkula/UnityAndroidRuntimePermissions#14)
- Updated Unity version to 2021.3.41f1
- Upgraded Texts to TextMesh Pro (closed #82)
- Configurable Enter Play Mode is supported (disabling Domain Reload works but disabling Scene Reload isn't tested)
- FileBrowser.Instance is now public for convenience
- Removed nested canvases from SimpleFileBrowserCanvas prefab to make VR integration simpler

Fixed rare "No such proxy method" error for native callback functions

- Moved most UnityEvent registrations to the code (it fixes InputFiel…

…d.OnEndEdit being changed to InputField.OnSubmit on latest Unity versions, see: yasirkula/UnityTextToTextMeshProUpgradeTool#2)

- Minor memory optimization in RecycledListView
- Attempted to simplify the example code

Potential fix for IllegalStateException on Android

Fixed file browser not showing any contents in a folder if it contain…

…s a system-protected file/folder (happened with '.android_secure' folder on Android)