Release 2.0.0-alpha.0

• refactor: rewrite code base to use reanimated v2 6f36e9c
• chore: updated react-native to 63.2 0f09886
• WIP e998ca3
• chore: updated reanimated to 2 alpha 6 a4b385c
• chore: integrate Reanimated v2 in example project ab83595
• chore: updated examples fa6fbda
• docs: updated documents 9b1e927
• chore: comment out flipper 33392a3
• fix: fixed native projects to allow release builds 516db83
• chore: updated pref component 300a8b0
• chore: updated redash c71c2d2
• chore: added renimated babel plugin 5a594ad
• refactor: update childern type & fix animation state import 7dc12a6