Documentation refactoring

Adds colorized error messages

Add support for serde v1.0 for all dependencies

Add transcoding multiple files

Add `-r,--radix` option

The `transcode` function is changed to be more usable outside the context of
the Panser application.

Closed:

- [Issue 1](#1)
- [Issue 2](#2)
- [Issue 4](#4)

Add delimiter-based framing

Improve documentation and error handling

Add support for multiple formats

Add framed input/output

The `--framed-input` and `--framed-output` flags are added. These indicate if the first four bytes of the input are the message length as a 32-bit unsigned integer and if the message length should be prepended as a 32-bit unsigned integer in Big Endian (Network Order) to the message written to output.

Add reading STDIN interactively