[SB-20426] add compose components demo

[4BooM04]

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[Copilot]

Pull request overview

This PR adds a new Compose UI example application demonstrating the Scanbot SDK's customizable UI components for barcode scanning, document scanning, and MRZ scanning.

Changes:

• Created a new compose-customisable-ui-example project showcasing Scanbot SDK Compose UI integration
• Implemented three scanner types: barcode, document, and MRZ with customizable UI components
• Added comprehensive demo screens with navigation, AR overlays, and permission handling

Reviewed changes

Copilot reviewed 36 out of 62 changed files in this pull request and generated 8 comments.

Show a summary per file

File	Description
build.gradle	Root build configuration with Android and Kotlin plugin setup
app/build.gradle	App-level dependencies including Scanbot SDK v8.1.0.76-STAGING-SNAPSHOT
settings.gradle.kts	Project settings with Scanbot repository configuration
app/src/main/AndroidManifest.xml	App manifest with camera permissions and activity definitions
MainActivity.kt	Main navigation setup with menu and scanner screens
Application.kt	SDK initialization with license configuration
BarcodeTestScreens.kt	Three barcode scanner demo implementations
DocumentTestScreens.kt	Document scanner demo with AR overlay
MrzTestScreens.kt	MRZ scanner demo screen
doc_code_snippet/*	Code snippet examples for documentation
ui/theme/*	Material Design 3 theme configuration
res/*	Android resources including strings, colors, styles, and drawables

Files not reviewed (2)

• compose-customisable-ui-example/.idea/codeStyles/Project.xml: Language not supported
• compose-customisable-ui-example/.idea/codeStyles/codeStyleConfig.xml: Language not supported

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