Implement the support for location metadata in `LazyValue`

[desaikd]

Location metadata can be pulled up to LazyValue from the underlying buffer. For binary implementations this will be None and for text implementations it will come from TextBuffer::row() and TextBuffer::column().

List of changes required for this implementation:

• [ ] Modify LazyValue to add a property for location metadata
  • [ ] For binary Ion it would always be None
  • [ ] For text Ion get it from the buffer
  • [ ] Would require having a HasLocation trait similar to HasSpan and HasRange for different encodings (Ion 1.1 text, Ion 1.0 text, etc.) or adding an associated type to the Decoder
• [ ] Write unit tests on LazyValue for location metadata