React Native Pie Chart Versions Save

Updated dependencies to fix vulnerabilities. Nothing really changed.

• No longer concentrate TypeScript declarations into a single file. Seems that types weren't working before.
• Fix issues #20 #33
• Update dependencies. Update package-lock.json to work with the latest npm version.

A bug fix in the TypeScript's type declarations.

Breaking change

The prop chart_wh is renamed to widthAndHeight.

Changes

• Upgraded the code to be compatible with the latest react and react-native.
• Added TypeScript types.