feat: Cairo 1 update

[julio4]

Move the current README.md in CAIRO_0_ARCHIVE.md and created a new one based on the current Starknet Ecosystem (with Cairo 1).

Checklist

• [x] The URL is not already present in the list (check with CTRL/CMD+F in the raw markdown file).
• [x] Each description starts with an uppercase character and ends with a period.
  Example: cairo - The Cairo programming language.
• [x] Drop all A / An prefixes at the start of the description.
• [x] Avoid using the word Starknet in the description.