Resolve "Make TryAscii a trait"

Closes #2

See merge request silicon-economy/libraries/serum/try-ascii!6

Use nix for CI/CD pipeline

See merge request silicon-economy/libraries/serum/try-ascii!9

Prepare 1.0.0 release

See merge request silicon-economy/libraries/serum/try-ascii!8

Use nightly compiler for tests to fix CI/CD pipeline

See merge request silicon-economy/libraries/serum/try-ascii!7

Relicense under OLFL-1.3

See merge request silicon-economy/libraries/serum/try-ascii!5

Added Contact Information to README.md as requested by the PDO

See merge request silicon-economy/libraries/serum/try-ascii!4

Add description, keywords, categories

See merge request silicon-economy/libraries/serum/try-ascii!3

Add README.md and rustdoc

See merge request silicon-economy/libraries/serum/try-ascii!2

Add CI/CD setup

See merge request silicon-economy/libraries/serum/try-ascii!1

Forward the formatting of non-ascii byte slices to the default core::fmt::Debug implementation for byte slices which supports more features, e.g. hex-encoded numbers.