feat: update aggregateVerifier function and example in android

[grvgoel81]

Motivation and Context

• Remove isSessionIdExists() method.
• Modified LoginParams to make it consistenst similar to SFA sdk's.
• logout method added.
• getSessionData() method added.

Jira Link: https://toruslabs.atlassian.net/browse/PD-4239

Description

• Remove isSessionIdExists() method.
• Modified LoginParams to make it consistenst similar to SFA sdk's.
• logout method added.
• getSessionData() method added.
• Update example.

How has this been tested?

By testing on android and iOS emulator.

Screenshots (if appropriate):

Screen.Recording.2024-12-06.at.10.05.08.AM.mov

Screen.Recording.2024-12-06.at.10.10.47.AM.mov

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project. (run lint)
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.