[ssh_x509] SecureBox 2.0.2 and SecureBox Pro 2.2.1

[ssh_x509 at roumenpetrov.info]

Hello All,

Android applications now include PKIX-SSH 12.0.1 and OpenSSL 1.1.1b.

(x) SecureBox 2.0.2
* Packaged with PKIX-SSH 12.0.1 and OpenSSL 1.1.1b.
* Simplified launcher icons.
* Use https protocol for manual pages.

(x) SecureBox Pro 2.2.1
* Packaged with PKIX-SSH 12.0.1 and OpenSSL 1.1.1b.
* Default RSA sizes to 3072 bits and more acceptable sizes in range 2^11 
- 2^13.
* Upgrade emulatorview to 1.3.1 (more precise "text" selection based on 
real start and end points).
* New preferences "Version" and "User Guide"(opens user guide on site).
* Migrated to AndroidX.

Regards,
Roumen Petrov