Dlt-init-openapi

* Bump dlt to 0.4.12

* Remove left over print statement
* Small udpates to readme

* Updated Readme, reordered content blocks and made example nicer
* Better rendering of required and non-required query args
* Do not ask wether output directory should be written when in non-interactive mode

* Remove init command from CLI. The same functionality is now the default command, see updated README file.
* Add better error messages for broken and incompatible specs
* Add a basic contributing page
* Improve endpoint selector message and select all endpoints if nothing is selected by the user
* Add endpoint descriptions as comments to the rendered source
* Fixes in paginator detection
* Add location of original spec to the generated README
* Add flag to allow OpenAPI 2.0 specs. Update readme with all current flags

* Render gitignore file and add source section to secrets.toml even if there are no secrets detected
* Updated readme with feedback from users and added pip instructions
* Make "username" a secret on basic auth
* Prevent openapi 2.0 specs with helpful output on how to migrate
* Fix e2e tests

* Better fallbacks for paginator and json_path if detection failed
* Add telemetry on init command
* Sanitze and snake case folders and files output