Add license verification for Android app

Implements a LicenseVerifier class to ensure app integrity and license compliance:
- Verifies the app's package name matches the official release
- Validates app signature against official release signature
- Allows debug and EA (Early Access) builds
- Shows violation dialog and exits if verification fails
- Enforces GPLv3 license compliance for modified versions

This helps prevent unauthorized modified versions from being distributed
without source code, as required by the GPLv3 license.

1 files changed, 0 insertions, 0 deletions

diff --git a/externals/vcpkg b/externals/vcpkg
-Subproject 33e9c99208736b713cabe4490e15235f62f893d
+Subproject 37d46edf0f2024c3d04997a2d432d59278ca1df