Misc Android updates

[TacoTheDank]

• Add .cxx to the .gitignore
• Update Gradle wrapper to 6.3 using git bash
• Update Android Studio 3.4.2 -> 3.6.3
• Fix syncing with using Android Studio
• Add Java 8 support
• Update AndroidX appcompat dependency to stable 1.1.0 (we don't need core here, it's transitive of appcompat)

[TacoTheDank]

The CI failed, as I have come to expect.

0.01s$ openssl aes-256-cbc -K $encrypted_7333c7dd5b15_key -iv $encrypted_7333c7dd5b15_iv -in android/avocado.keystore.enc -out android/avocado.keystore -d
iv undefined

The command "openssl aes-256-cbc -K $encrypted_7333c7dd5b15_key -iv $encrypted_7333c7dd5b15_iv -in android/avocado.keystore.enc -out android/avocado.keystore -d" failed and exited with 1 during .

What even...

[JaCzekanski]

Hi, thanks for the pull request. I don't see the point of refactoring the SDL specific code - everything in org/libsdl/app will be overwritten by any future SDL update anyway. That's also the reason why I didn't bother with refactoring to Kotlin in SDL classes - that's additional code I need to maintain.

The CI failed, as I have come to expect.

0.01s$ openssl aes-256-cbc -K $encrypted_7333c7dd5b15_key -iv $encrypted_7333c7dd5b15_iv -in android/avocado.keystore.enc -out android/avocado.keystore -d
iv undefined

The command "openssl aes-256-cbc -K $encrypted_7333c7dd5b15_key -iv $encrypted_7333c7dd5b15_iv -in android/avocado.keystore.enc -out android/avocado.keystore -d" failed and exited with 1 during .

What even...

Don't worry about that - I forgot to disable signing for PR CI builds - keystore is not available there.

[TacoTheDank]

I'll undo the last two commits, then.

[TacoTheDank]

Any updates?

[JaCzekanski]

Sorry, I didn't get any notification about new changes. LGTM