DebugAdapter variables overhaul (#793)

- Redesigned the representation of godot objects to match internal structure of godot server
- Lazy evaluation for the godot objects
- Stack frames now can be switched with variables updated

.vscode-test.js

@@ -2,7 +2,7 @@ const { defineConfig } = require('@vscode/test-cli');
 
 module.exports = defineConfig(
 	{
-		// version: '1.84.0',
+		// version: '1.96.4',
 		label: 'unitTests',
 		files: 'out/**/*.test.js',
 		launchArgs: ['--disable-extensions'],