Modernize array-utility with TypeScript fixes and dependency updates

- Add missing @tsdotnet/common-interfaces dependency
- Fix TypeScript errors with proper type guards for sparse arrays:
  - Add undefined checks before passing array elements to functions
  - Handle T | undefined safely in indexOf, remove, findIndex, forEach, and applyTo functions
- Add placeholder tests for basic functionality verification
- All builds (ESM, CJS, types) working correctly with Rollup
- Ready for publishing

Author: electricessence