Implement photo picker

[Rajan-p-simform]

This pull request introduces significant updates to the Android project, including upgrading dependencies, enhancing compatibility with newer Android SDKs, and implementing modern features like view binding and media picker APIs. The most important changes are grouped into dependency updates, SDK compatibility enhancements, and feature additions.

Dependency Updates:

• Updated dependencies in SSffmpegVideoOperation/build.gradle and app/build.gradle to newer versions, including androidx.core:core-ktx (1.9.0), androidx.appcompat:appcompat (1.7.1), and com.google.android.material:material (1.12.0). [1] [2]

Feature Additions:

• Introduced media picker APIs (ActivityResultContracts.PickVisualMedia and ActivityResultContracts.PickMultipleVisualMedia) in BaseActivity.kt for modern file selection workflows. [1] [2]
• Added new utility methods in Common.kt for handling file paths, saving temporary files, and retrieving media duration. [1] [2] [[3]]