feat: Initial project setup for Drive Theory app

This commit introduces the initial structure and core components for the "Drive Theory" Android application, a practice app for the Georgian driving theory exam.

Key additions include:

*   **Project Configuration:**
    *   Set up Gradle build scripts (`build.gradle.kts`, `settings.gradle.kts`), version catalog (`libs.versions.toml`), and properties.
    *   Configured application variants, dependencies (Compose, Hilt, Room, Navigation, Coil), and plugins (Kotlin, KSP).
    *   Added `.gitignore` files to exclude build artifacts, IDE files, and local assets.

*   **Application Core:**
    *   Established the `DriveTheoryApplication` class with Hilt for dependency injection.
    *   Defined the main `Activity` and `AndroidManifest.xml`.
    *   Implemented basic navigation with `DriveExamNavHost` using Jetpack Navigation Compose.

*   **Database and Data Layer:**
    *   Set up Room database (`DriveExamDatabase`) pre-populated from an asset file.
    *   Defined entities for tickets, choices, categories, languages, and their relationships.
    *   Created DAOs for data access and an `ExamRepository` to abstract data sources.
    *   Configured a Hilt module (`DatabaseModule`) to provide database instances and DAOs.

*   **UI and Features:**
    *   **Home Screen:** Implemented `HomeScreen` allowing users to select exam language and category. It displays the number of available questions and provides options to start in "Study Mode" or "Exam Mode".
    *   **Study/Exam Screen:** Created a versatile `StudyScreen` that functions as both a study and an exam interface. It includes question/answer presentation, navigation controls, an exit confirmation dialog, and a question navigator.
        *   **Exam Mode:** Features a 30-minute timer and a mistake counter (fails after 3 mistakes).
        *   **Study Mode:** Includes a "Show Explanation" feature.
    *   **About Screen:** Added an `AboutScreen` with information about the app, its features, and data sources.
    *   **Components:** Developed reusable UI components for displaying questions, answer choices, and navigation/progress indicators.
    *   **ViewModels:** Created `HomeViewModel` and `StudyViewModel` to manage UI state and logic.

*   **Resources:**
    *   Added Material Design icons, theme files (color, type, theme), and initial app launcher icons.

Signed-off-by: Luka Mamukashvili <57063715+USLTD@users.noreply.github.com>

Author: USLTD

.gitignore

@@ -0,0 +1,16 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties
+